three dimensional figures
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Geometric Figures PresentationTRANSCRIPT
THREE-DIMENSIONAL FIGURES
Haydee Dizon Macapinlac
September 3, 2014
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.
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.
Solid Figures can have:
Surface
Face
Base
Edge
Corner
Edge
Surface
• The curved part of a 3D shape.
• Cylinders and cones have surfaces.
Face
• Part of a 3D figure that is flat.
• The side of a 3D figure.
Base
• The bottom face of a 3D object.
Base
Edge
• The line where two faces meet on a 3D object.
Corner
• The point where three or more edges touch.
Vertex (Vertices)
• The point where three or more edges meet.
• This cube has 12 vertices all together.
TYPES OF THREE-DIMENSIONAL
FIGURES
(SOLID FIGURES)
Cube
• A three-dimensional shape which
has:
– 6 square faces with the same sizes
– 12 edges
– 8 vertices
– 8 corners
Cube
• Some faces are parallel.• Some edges are parallel.• Some faces are
perpendicular.• Some edges are
perpendicular.
Cube
• Cubes in daily life: – A box
– Blocks
– Dice
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.
Sphere
• Spheres in daily life:– A Ball
– A Globe
– A Marble
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.
Cone
• Cones in daily life:– Ice Cream Cone– A Party Hat
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.
Cylinder
• Cylinders in daily life:– A Soup Can
– A Roll of Toilet Paper
Pyramid• A three-dimensional
shape which has a polygon for its base and triangular faces which meet at one point (vertex).
Rectangular Prism
• A 3D shape that has:– 6 rectangular faces
• 2 of those faces are equal
– 12 edges
– 8 vertices
Rectangular Prism• Some faces are parallel
• Some edges are parallel
• Some faces are perpendicular
• Some edges are perpendicular
Rectangular Prism
• Rectangular prism in daily life: – A Kleenex Box
– A Refrigerator
– A Cereal Box
References:
• Plane and Solid Mensuration, A simplified Approach by Earnhart and Bejasa
• Simplified Engineering Mathematics by JAS Tordillo
• www.google.com
• www.slideshare.com