project work putrajaya 2013 : maximising a site
TRANSCRIPT
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Maximising A Site
Name : Ariff Imran Bin Mazlan
Class : 5 Seri Setia
Teacher : Sir Ng Seng Chew
School : Sekolah Menengah Kebangsaan Putrajaya Presint 14 (1)
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No. Title Page
1. Acknowledgement
2. Objectives
3. Introduction
4. Part 1
5. Part 26. Part 3
7. Further Exploration
8. Conclusion
9. Reflection
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First and foremost, I would like to thank my Additional
Mathematics teacher, Sir Ng Seng Chew as he gives us important
guidance and commitment during this project work. He has been a
very supportive figure throughout the whole project work.
I also would like to give thanks to all my friends for helping me
and always supporting me to help complete this project work. They
have done a great job at surveying various shops and sharing
information with other people including me. Without them thisproject would never have had its conclusion.
For their strong support, I would like to express my gratitude to
my beloved parents. Also for supplying the equipments and money
needed for the resources to complete this project. They have always
been by my side and I hope they will still be there in the future.
Last but not least, I would also like to thank all the nice
shopkeepers, staffs, and citizens for helping me collect the much
needed data and statistics for this. Not forgetting too all the other
people who were involved directly towards making this project a
reality.
I thank you all.
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The aims of carrying out this project work are to enable student to:
Use the language of mathematics to express mathematicalideas precisely.
Apply and adapt a variety of problem by solving strategies tosolve problem.
Use technology especially the ICT appropriately and effectively. To develop positive attitude towards mathematics. To promote effective mathematical. To improve thinking skills.
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An understanding of the attributes and relationships of
geometric objects can be applied in diverse contextsinterpreting a
schematic drawing, estimating the amount of wood needed to frame
a sloping roof, rendering computer graphics, or designing a sewingpattern for the most efficient use of material.
Although there are many types of geometry, school
mathematics is devoted primarily to plane Euclidean geometry,
studied both synthetically (without coordinates) and analytically
(with coordinates). Euclidean geometry is characterized most
importantly by the Parallel Postulate, that through a point not on a
given line there is exactly one parallel line. (Spherical geometry, in
contrast, has no parallel lines.)
During high school, students begin to formalize their geometry
experiences from elementary and middle school, using more precise
definitions and developing careful proofs. Later in college some
students develop Euclidean and other geometries carefully from a
small set of axioms.
The concepts of congruence, similarity, and symmetry can be
understood from the perspective of geometric transformation.
Fundamental are the rigid motions: translations, rotations,
reflections, and combinations of these, all of which are here assumed
to preserve distance and angles (and therefore shapes generally).
Reflections and rotations each explain a particular type of symmetry,
and the symmetries of an object offer insight into its attributesas
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when the reflective symmetry of an isosceles triangle assures that its
base angles are congruent.
In the approach taken here, two geometric figures are defined
to be congruent if there is a sequence of rigid motions that carriesone onto the other. This is the principle of superposition. For
triangles, congruence means the equality of all corresponding pairs of
sides and all corresponding pairs of angles. During the middle grades,
through experiences drawing triangles from given conditions,
students notice ways to specify enough measures in a triangle to
ensure that all triangles drawn with those measures are congruent.
Once these triangle congruence criteria (ASA, SAS, and SSS) areestablished using rigid motions, they can be used to prove theorems
about triangles, quadrilaterals, and other geometric figures.
Similarity transformations (rigid motions followed by dilations)
define similarity in the same way that rigid motions define
congruence, thereby formalizing the similarity ideas of "same shape"
and "scale factor" developed in the middle grades. These
transformations lead to the criterion for triangle similarity that twopairs of corresponding angles are congruent.
The definitions of sine, cosine, and tangent for acute angles are
founded on right triangles and similarity, and, with the Pythagorean
Theorem, are fundamental in many real-world and theoretical
situations. The Pythagorean Theorem is generalized to non-right
triangles by the Law of Cosines. Together, the Laws of Sines and
Cosines embody the triangle congruence criteria for the cases where
three pieces of information suffice to completely solve a triangle.
Furthermore, these laws yield two possible solutions in the
ambiguous case, illustrating that Side-Side-Angle is not a
congruencecriterion. Analytic geometry connects algebra and
geometry, resulting in powerful methods of analysis and problem
solving. Just as the number line associates numbers with locations in
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one dimension, a pair of perpendicular axes associates pairs of
numbers with locations in two dimensions. This correspondence
between numerical coordinates and geometric points allows
methods from algebra to be applied to geometry and vice versa. The
solution set of an equation becomes a geometric curve, making
visualization a tool for doing and understanding algebra. Geometric
shapes can be described by equations, making algebraic manipulation
into a tool for geometric understanding, odeling, and proof.
Geometric transformations of the graphs of equations correspond to
algebraic changes in their equations.
Dynamic geometry environments provide students withexperimental and modeling tools that allow them to investigate
geometric phenomena in much the same way as computer algebra
systems allow them to experiment with algebraic phenomena.
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The earliest recorded beginnings of geometry can be traced to
ancient Mesopotamia and Egypt in the 2nd millennium BC. Early
geometry was a collection of empirically discovered principles
concerning lengths, angles, areas, and volumes, which were
developed to meet some practical need in surveying, construction,
astronomy, and various crafts. The earliest known texts on geometry
are the Egyptian Rhind Papyrus (20001800 BC) and Moscow
Papyrus (c. 1890 BC), the Babylonian clay tablets such as Plimpton
322 (1900 BC). For example, the Moscow Papyrus gives a formula for
calculating the volume of a truncated pyramid, or frustum. South of
Egypt the ancient Nubians established a system of geometry
including early versions of sun clocks. In the 7th century BC, the
Greek mathematician Thales of Miletus used geometry to solve
problems such as calculating the height of pyramids and the distance
of ships from the shore. He is credited with the first use of deductive
reasoning applied to geometry, by deriving four corollaries toThales'Theorem. Pythagoras established the Pythagorean School, which is
credited with the first proof of the Pythagorean theorem, though the
statement of the theorem has a long history Eudoxus (408c.355 BC)
developed the method of exhaustion, which allowed the calculation
of areas and volumes of curvilinear figures, as well as a theory of
ratios that avoided the problem ofincommensurable magnitudes,
which enabled subsequent geometers to make significant advances.
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Around 300 BC, geometry was revolutionized by Euclid, whose
Elements, widely considered the most successful and influential
textbook of all time, introduced mathematical rigor through the
axiomatic method and is the earliest example of the format still usedin mathematics today, that of definition, axiom, theorem, and proof.
Although most of the contents of the Elements were already known,
Euclid arranged them into a single, coherent logical framework. The
Elements was known to all educated people in the West until the
middle of the 20th century and its contents are still taught in
geometry classes today.Archimedes (c.287212 BC) ofSyracuse used
the method of exhaustion to calculate the area under the arc of
a parabola with the summation of an infinite series, and gave
remarkably accurate approximations ofPi. He also studied
the spiral bearing his name and obtained formulas for
the volumes ofsurfaces of revolution.
In the Middle Ages, mathematics in medieval Islam contributed
to the development of geometry, especially algebraic geometry
andgeometric algebra. Al-Mahani conceived the idea of reducing
geometrical problems such as duplicating the cube to problems in
algebra. Thbit ibn Qurra(known as Thebit in Latin) (836901) dealt
with arithmetic operations applied to ratios of geometrical
quantities, and contributed to the development ofanalytic
geometry. Omar Khayym (10481131) found geometric solutions
to cubic equations. The theorems ofIbn al-Haytham(Alhazen), Omar
Khayyam and Nasir al-Din al-Tusi on quadrilaterals, including
the Lambert quadrilateral and Saccheri quadrilateral, were early
results in hyperbolic geometry, and along with their alternative
postulates, such as Playfair's axiom, these works had a considerable
influence on the development of non-Euclidean geometry among
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later European geometers, including Witelo, Gersonides, Alfonso,
John Wallis, and Giovanni Girolamo Saccheri.
In the early 17th century, there were two important
developments in geometry. The first was the creation of analytic
geometry, or geometry withcoordinates and equations, by Ren
Descartes (15961650) and Pierre de Fermat (16011665). This was a
necessary precursor to the development ofcalculus and a precise
quantitative science ofphysics. The second geometric development
of this period was the systematic study ofprojective geometry by
Girard Desargues (15911661). Projective geometry is a geometrywithout measurement or parallel lines, just the study of how points
are related to each other.
Two developments in geometry in the 19th century changed
the way it had been studied previously. These were the discovery
ofnon-Euclidean geometries by Nikolai Ivanovich Lobachevsky
(17921856), Jnos Bolyai (18021860) and Carl Friedrich Gauss
(17771855) and of the formulation ofsymmetry as the central
consideration in the Erlangen Programme ofFelix Klein (which
generalized the Euclidean and non-Euclidean geometries). Two of the
master geometers of the time were Bernhard Riemann (18261866),
working primarily with tools from mathematical analysis, and
introducing the Riemann surface, and Henri Poincar, the founder
ofalgebraic topology and the geometric theory ofdynamical systems.As a consequence of these major changes in the conception of
geometry, the concept of "space" became something rich and varied,
and the natural background for theories as different as complex
analysis and classical mechanics.
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Woman teaching geometry. Illustration at the beginning of a
medieval translation ofEuclid's Elements,
A European and an Arab practicing geometry in the 15th century.
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Geometry (AncientGreek:; geo- "earth", -metron
"measurement") is a branch ofmathematics concerned with
questions of shape, size, relative position of figures, and the
properties of space. A mathematician who works in the field of
geometry is called a geometer. Geometry arose independently in a
number of early cultures as a body of practical knowledge
concerning lengths, areas, and volumes, with elements of a formal
mathematical science emerging in the West as early as Thales (6th
Century BC). By the 3rd century BC geometry was put into
an axiomatic formby Euclid, whose treatmentEuclidean
geometryset a standard for many centuries to
follow. Archimedes developed ingenious techniques for calculating
areas and volumes, in many ways anticipating modern integral
calculus. The field ofastronomy, especially mapping the positions of
thestars and planets on the celestial sphere and describing therelationship between movements of celestial bodies, served as an
important source of geometric problems during the next one and a
half millennia. Both geometry and astronomy were considered in the
classical world to be part of theQuadrivium, a subset of the
seven liberal arts considered essential for a free citizen to master.
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The introduction ofcoordinates by Ren Descartes and the
concurrent developments ofalgebra marked a new stage for
geometry, since geometric figures, such as plane curves, could now
be represented analytically, i.e., with functions and equations. Thisplayed a key role in the emergence ofinfinitesimal calculus in the
17th century. Furthermore, the theory ofperspective showed that
there is more to geometry than just the metric properties of figures:
perspective is the origin ofprojective geometry. The subject of
geometry was further enriched by the study of intrinsic structure of
geometric objects that originated with Euler and Gauss and led to the
creation oftopology and differential geometry.
In Euclid's time there was no clear distinction between physical
space and geometrical space. Since the 19th-century discovery
ofnon-Euclidean geometry, the concept ofspace has undergone a
radical transformation, and the question arose: which geometrical
space best fits physical space? With the rise of formal mathematics in
the 20th century, also 'space' (and 'point', 'line', 'plane') lost its
intuitive contents, so today we have to distinguish between physical
space, geometrical spaces (in which 'space', 'point' etc. still have their
intuitive meaning) and abstract spaces. Contemporary geometry
considers manifolds, spaces that are considerably more abstract than
the familiar Euclidean space, which they only approximately
resemble at small scales. These spaces may be endowed with
additional structure, allowing one to speak about length. Modern
geometry has multiple strong bonds with physics, exemplified by the
ties between pseudo-Riemannian geometry and general relativity.
One of the youngest physical theories, string theory, is also very
geometric in flavour.
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While the visual nature of geometry makes it initially more
accessible than other parts of mathematics, such as algebra
or number theory, geometric language is also used in contexts far
removed from its traditional, Euclidean provenance (for example,in fractal geometry and algebraic geometry)
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SQUARE
All sides of a square are congruent. All angles are right
angles. The sum of the interior angles of a square will always
be 360 degrees. A square is a rectangle, while a rectangle is
not a square. A square is under the category of quadrilaterals
along with the rectangle, trapezoid, kite, and rhombus.
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RECTANGLE
The both pairs of opposite sides of rectangles are parallel.
Both pairs of opposite sides of rectangles are congruent.
All angles of rectangle are 90 degrees. Both pairs ofopposite angles are congruent.The diagonals bisect each
other.
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CIRCLE
A circle is a shape where every point along the edge is
equidistant from a point at the center. The distance from the
center to the edge is called the radius. The distance across
the widest point of a circle is called the diameter, and it is
always equal to the radius x 2. The distance around the circle
is called the circumference, and is equal to the diameter x 2 x
pi (3.14 and so on). The area of the circle is equal to the
radius squared (multiplied by itself) x pi.
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TRIANGLE
Any 3-sided polygon whose internal angles equal to 180
degrees. The length of all side of triangle are equal. Got 3
side and vertices.
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PENTAGON
Number of sides of a pentagon is 5 side. The number of
vertices are also 5. The interior angle of pentagon is
108.Meanwhile, the exterior angle of pentagon is 72. The
number of side of a pentagon are equal to the number of
vertices. The Exterior angle of a pentagon is multiplied by
the number of side is 360.
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TRAPEZOID
The only real characteristic of a trapezoid is that one pair of
opposite sides is parallel. For an isosceles trapezoid, in
addition to one pair of opposite sides being parallel, the legs
are congruent, each pair of base angles is congruent, and thediagonals are congruent.
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Question (a) :
The school has chosen a rectangular-shape site for the
landscape. By using appropriate variables, express the area of
the park site.
Park Site
VARIABLES :
1.Length of the brick2.Width of the brick3.Area of the park site4.Width of the park site5.Length of the park site6.Shape of the park site
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AREA :
Perimeter of the park site,
Area of the park site :
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Question (b) :
Use at least two methods to determine the maximum area of
the site. Further, find the length of the base area of the site in
order to determine maximum area.
I. Differentiation :
When Thus, the maximum area of the site is 3.0625
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II. Graphical MethodPlot graph against . Based on the table of values ofand
Length of site area, x (m) Area of site area, A (m)
1.70 3.0600
1.71 3.06091.72 3.0616
1.73 3.0621
1.74 3.0624
1.75 3.0625
1.76 3.0624
1.77 3.0621
1.78 3.0616
1.79 3.0609
1.80 3.0600
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when Thus, the maximum area of the site is .
3.0595
3.06
3.0605
3.061
3.0615
3.062
3.0625
3.063
1.68 1.7 1.72 1.74 1.76 1.78 1.8 1.82
A(m)
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Question (c) :
Determine the minimum number of brick required. If the cost
of purchasing a piece of brick is RM7.00, calculate the
minimum cost to build the area of the site. (assume that the
brick have equal length)
The minimum number of bricks required is :
Solution:
The perimeter of the park site = 7.0m
The length of 1 bricks = 0.2m
The minimum number of bricks required is =
= 35 pieces
The cost of 1 bricks required is = RM7.00
The minimum cost making the site area,
= The minimum number of bricks required x The cost of 1
bricks
= 35 pieces x RM7.00
= RM245.00
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You plan to transform the Floria Park site from rectangularto trapezoidal shape. The park is decorated with twocircular ponds of different sizes as shown in the figures
below. The remaining area of the garden planted with
flowers.
(a)The area of the flower site is and the radius of the fishpond is . Express in term of and .
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6m
Big Pond
Luas Trapezium Luas Kolam Besar Luas Kolam Kecil
Small Pond
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(b)Find the diameter of the large fish pond if the site is
120. (Used (Give your answer correct to 4significant figures).
Therefore, The diameter of large fish pond is 4.566.
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(c)Fish pond construction cost is higher than the cost of
building a flower site. Use two methods to determine thearea of flower site in order to minimize the construction cost
(Use ).
i. Differentiation
)
When
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When x is maximum
The cost of constructing the garden is minimum when thearea of flower site is .
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ii. Tabulation
In order that the cost of the fish ponds to be minimum, find
the maximum area of flower site.
0.5 117.580
1 122.292
1.5 123.863
2 122.292
2.5 117.580
3 109.7263.5 98.731
4 84.593
4.5 67.314
5 46.894
The cost of constructing the garden is minimum when thearea of flower site is .
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If the area of the garden remains the same, build thegarden with other form of shape to obtain minimum
perimeter. Explain your reason.
Compare 3 different shape :
A Square :
Perimeter
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A Circle
Perimeter
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A Semi-Circle
Perimeter
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As the conclusion to this project work, after doing research,
answering questions, drawing graphs and some problem
solving, I notice that geometrical shape are close with us in
our daily life. That is because all the things or anything are
made up using geometrical shape and all the geometrical
shape got its own name. Trapezium is one of it, The shape
can be use for design or pattern for anything such as
landscape design and decoration like what I did in this project
work. This project work also help student to improve their
mathematics calculation such as differentiation, quadratic
equation, geometry, and other thing that required to solve
the question given, and also tell the student that
mathematics is usefull, it can be used in our daily life. Actually
mathematics is everywhere and may on this green planet, we
may not recognized it because it doesnt look like the
mathematics we did in school. Mathematics in the world
around us sometimes seems invisible. But mathematics is
present in our world all the time in the workplace, in our
homes and in life generally.I
ADDMATHS!
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Not only this project encourages the student to think
critically to identify and solve problems. It is also encourage
student to gather information using the technologies such as
the internet, improve thinking skills and promote effective
mathematical communication.After spending countless
hours, days and night to finish this project and also sacrificing
my facebook and skyping time in this mid year holiday, there
are several things that I can say...
If people do not believe that additionalmathematics is simple, it is only because theydo not realize how complicated life is.