3 dimensional figures notes - north palos school …...3 dimensional figures notes 3 dimensional...
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3 Dimensional Figures Notes
3 Dimensional Figure: A 3-D figure is a figure that does not lie in a plane.
Face of a 3-D Figure: a flat surface shaped like a polygon
Edge of a 3-D Figure: is a segment formed by the intersection of two faces
Vertex of a 3-D Figure: is a point where three of more edges meet (corners)
(More than one vertex is called vertices)
GOT IT!
How many faces, edges and vertices are in the square pyramid?
Faces: _________________
Edges: _________________
Vertices: _______________
PRISMS
A prism is a 3-D figure with two parallel polygonal faces that are the same size and shape.
Base of Prisms:
A base of a prism is one pair of parallel polygonal faces that are the same size and shape. Your
name a prism for the shape of its bases.
Height of a Prism:
The height of a prism is the length of a perpendicular segment that joins the bases.
Lateral Face of a Prism:
A lateral face of a prism is a face that joins the bases of the prism.
How is the number of lateral faces of a prism related to the shape of the base of the prism?
Hints:
Look at the parallel bases. How many bases are there and what
shape is it? _________________________________
Name of figure? _____________
PYRAMIDS
A pyramid is a 3-D figure with a base that is a polygon and triangular faces that meet at a vertex.
Base of a Pyramid:
A polygonal face that does not connect to the vertex. You name a pyramid for the shape of its base.
Height of a Pyramid:
The length of the segment perpendicular to the base that joins the vertex and the base.
Lateral Face of a Pyramid:
A triangular face that joins the base and the vertex.
How is the pentagonal pyramid similar to a pentagonal prism? How is it different?
Pentagonal Prism Pentagonal Pyramid
Similar Different
Hints:
Look at the base. How many bases are there and what shape is it?
_________________________________
Name of figure? _____________
PRACTICE