three dimensional figures
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Geometric Figures PresentationTRANSCRIPT
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THREE-DIMENSIONAL FIGURES
Haydee Dizon Macapinlac
September 3, 2014
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Objectives:Define three-dimensional figures
Identify the parts of a 3D figure
Identify and describe attributes of three-
dimensional shapes including prisms, pyramids,
spheres, cones, and cylinders using appropriate
vocabulary.
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What are three-dimensional figures?
These figures are solid or hollow, you could hold them in your hand.
They have length, width,
and height.
They are also called
solid geometric figures.
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Solid Figures can have:
Surface
Face
Base
Edge
Corner
Edge
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Surface
• The curved part of a 3D shape.
• Cylinders and cones have surfaces.
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Face
• Part of a 3D figure that is flat.
• The side of a 3D figure.
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Base
• The bottom face of a 3D object.
Base
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Edge
• The line where two faces meet on a 3D object.
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Corner
• The point where three or more edges touch.
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Vertex (Vertices)
• The point where three or more edges meet.
• This cube has 12 vertices all together.
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TYPES OF THREE-DIMENSIONAL
FIGURES
(SOLID FIGURES)
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Cube
• A three-dimensional shape which
has:
– 6 square faces with the same sizes
– 12 edges
– 8 vertices
– 8 corners
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Cube
• Some faces are parallel.• Some edges are parallel.• Some faces are
perpendicular.• Some edges are
perpendicular.
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Cube
• Cubes in daily life: – A box
– Blocks
– Dice
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Sphere
• A perfectly round three-dimensional shape, like a ball.
• It has only one curved surface.
• A sphere has no face,edge,vertex and corner.
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Sphere
• Spheres in daily life:– A Ball
– A Globe
– A Marble
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Cone• A three-dimensional shape
made up of:– a circular base
– a curved surface that comes to a point at the top (vertex).
• A Cone has no edge and corner.
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Cone
• Cones in daily life:– Ice Cream Cone– A Party Hat
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Cylinder• A three-dimensional shape
with one curved surface and 2 equal circles as its base.
• A Cylinder has 2 faces, 1 surface, no edges and
no corners.
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Cylinder
• Cylinders in daily life:– A Soup Can
– A Roll of Toilet Paper
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Pyramid• A three-dimensional
shape which has a polygon for its base and triangular faces which meet at one point (vertex).
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Rectangular Prism
• A 3D shape that has:– 6 rectangular faces
• 2 of those faces are equal
– 12 edges
– 8 vertices
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Rectangular Prism• Some faces are parallel
• Some edges are parallel
• Some faces are perpendicular
• Some edges are perpendicular
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Rectangular Prism
• Rectangular prism in daily life: – A Kleenex Box
– A Refrigerator
– A Cereal Box
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References:
• Plane and Solid Mensuration, A simplified Approach by Earnhart and Bejasa
• Simplified Engineering Mathematics by JAS Tordillo
• www.google.com
• www.slideshare.com