Transcript 3D Shapes - stupidchicken comic

Characteristics of
3-D Shapes
Developed by
Ivan Seneviratne
Cube
A cube is a solid figure with three equal
dimensions of length, width and height.
 It has six square faces.
edges
 This shape has eight vertices.
 It also has twelve edges.
vertex
Cuboid
A cuboid is a solid figure with 6 faces which are
all rectangles.
 It has six rectangular faces.
 This shape has eight vertices.
 It also has twelve edges.
edges
vertex
Prisms
A prism has two ends that are exactly the same
size and shape and they are parallel to each other.
The bases can be any shape and the name of the
prism is based on the name of the bases.
Prism
Triangular Prism...
 has 5 faces,
 three faces are rectangular,
 two faces are triangular,
 has 9 edges and 6 vertices.
base
height
Cylinder
A cylinder is a prism in which the bases are
circles.
 This shape have 2 circular faces.
 Each has a curved surface.
radius
 It has no vertices.
 It has 2 edges.
height
base
Pyramids
The sides of a pyramid are always triangles. They
meet in a point at the top. This is called the apex.
The base is a polygon, it can be any 2D shape.
Pyramid
A square based pyramid...
 has five faces,
 has four triangular faces,
 has an apex
 has 8 edges and 4 vertices.
apex
base
Cone
A cone is like a pyramid but with a circular base
instead of a polygonal base.
 has a curved surface
 has a circuar flat surface
 has an apex
 has two slanted edges
h
 has a radius and diameter
r
Sphere
Sphere is the mathematical word for “ball.” It is
the set of all points in space a fixed distance from
a given point called the center of the sphere.
r
This presentation is developed by Ivan Seneviratne © 2006
purely for personal use.
[email protected]