1.calculate the area of each triangle. 2.calculate the perimeter of each triangle. 3.are the figures...
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1. Calculate the area of each triangle.2. Calculate the perimeter of each triangle.3. Are the figures similar?4. Calculate the probability of randomly
picking a triangle and it is a right triangle.
3
4
5
8
6
11A
B
Bell Ringer 4-1-11
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1. Calculate the area of each triangle.
2. Calculate the perimeter of each triangle.
3
4
5
8
6
11A
B
262
12
2
)4(3unitsAa
2242
48
2
)8(6unitsAb
unitsPa
Pa
12
543
unitsPa
Pb
25
1186
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3. Are the figures similar?
3
4
5
8
6
11A
B
11
5
8
4
6
3: NO
similar.not are figures
theso factor, scale same
thehavenot do sides The
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3
4
5
A
32+42=52
9+16=25
25=25Right Triangle
8
6
11
B
Not Right Triangle
62+82=112
36+64=121
100 ≠ 121
4. Calculate the probability of randomly picking a triangle and it is a right triangle.
%502
1:)( orRightP
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Quiz4-1-11
A cylindrical swimming pool has a radius of 3 feet and a height of 4 feet. How many cubic feet can the swimming pool contain?
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What is the volume?
To find the volume of a cylinder, I multiply the area of the base by the height. The base of a cylinder is a circle. I multiplied 3.14 by the radius squared to get the area. I multiplied the area of the base by the height to get the volume.
A cylindrical swimming pool has a radius of 3 feet and a height of 4 feet. How many cubic feet can the swimming pool contain?
The volume of the cylinder is 113.04 cubic feet.
CylinderRadius = 3 ftHeight = 4 ftCubic Feet
hrV 2)4)(3)(14.3( 2V
)36)(14.3(V304.113 ftV
Remember to Replace B!
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Speed Test1. Get out a dry erase marker.2. You have 1 minute to complete as many problems as you can.3.We will grade in 1 minute.4. Graph your results. Keep the graph in your notebook.5. We will do this every day.
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Problem of the Week
#5-31. You have 5 minutes to work on the
problem of the week and word problem.
2. The problem of the week must follow the Read, Think, Solve, Justify format.
3. When you are finished, turn them in.4. They are due Friday.
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Easter Egg Project
Everyone needs to bring:A package of Candy
individually wrappedany type of candy
We need this by next Wednesday.Next week, you will begin an Easter
Egg project
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Quiz
You need the sheet protector with the 4 graphs.
The quiz problems will come on the screen.There are 5 review questions.We will grade each question with the
clicker. After you have solved the problems, I will give you the multiple choice.
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1. Which graph shows a right triangle with one vertex at coordinates (−2, −4) and another vertex in the first quadrant?
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1. Which graph shows a right triangle with one vertex at coordinates (−2, −4) and another vertex in the first quadrant?
IIII
III IV
(-2,-4)
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2. If graph H is dilated 200%, what will be the new coordinates?
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2. If graph H is dilated 200%, what will be the new coordinates?
(-2,4)
(-2x2,-4x2)
(-4,-8)
(-2,4)
(-2x2,4x2)
(-4,8)
(4,-4)
(4x2,-4x2)
(8,-8)
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3. If graph G is dilated by a scale factor of 1/2, what will be the new coordinates?
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3. If graph G is dilated by a scale factor of 1/2, what will be the new coordinates?
(2,6)
(2x.5,6x.5)
(1,3)
(2,-2)
(2x.5,-2x.5)
(1,-1)
(-4,-2)
(-4x.5,-2x.5)
(-2,-1)
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4. If graph J is reflected across the y-axis, which quadrant would all three vertices be plotted in?
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4. If graph J is reflected across the y-axis, which quadrant would all three vertices be plotted in?
II
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5. If graph F is translated 3 units down and 2 units right, what are the new coordinates of the triangle?
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5. If graph F is translated 3 units down and 2 units right, what are the new coordinates of the triangle?
(6,2)
(6+2,2-3)
(8,-1)
(-2,-4)
(-2+2,-4-3)
(0,-7)
(-2,2)
(-2+2,2-3)
(0,-1)
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Reach for the StarsFriday
Ms. Keller just purchased a house and needs to replace her driveway with either asphalt or concrete. Asphalt costs $75 per cubic yard but must be replaced every 10 years. Concrete costs $175 per cubic yard but lasts 3 times as long as asphalt. Which is closest to the amount of money Ms. Keller will save per cubic yard for the first 30 years if she chooses concrete?
A $50 per cubic yardB $100 per cubic yardC $25 per cubic yardD $250 per cubic yard
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Reach for the StarsFriday
Arielle’s truck can travel 250 miles on 15 gallons of gas. At this rate, how many miles can Arrielle’s truck travel on 9 gallons of gas?
A 200 miB 150 miC 140 miD 100 mi
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Reach for the StarsFriday
The Johnsons are thinking of building a bridge across their pond from point X to point Z, as shown in the figure below.
Which is closest to the distance from point X to point Z?A 100 yardsB 50 yardsC 25 yardsD 10 yards
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Get plenty of rest Sunday night.
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Eat a good breakfast.
Bring Healthy Snacks.
Bring a lunch, or the school will provide one for you.
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Work out EVERY problem.
Justify EVERY problem.Look back over your
answers.Fill in the Answer sheet
last.
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Take your time.You have ALL day!Take frequent breaks.Put your pencil down and close
your eyes for a few minutesGo to the rest room and splash
water on your face.
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Incentive:You will be rewarded for all of
your hard work. You MUST work out and JUSTIFY
every problem.Commended = 2 Assignment
Passes>= 80% = No Final Exam
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Don’t get frustrated.Believe in yourself.I believe in You!