Wednesday, April 8, 2009

PYRAMID

Pyramid













Definition

When we think of pyramids we think of the Great Pyramids of

Egypt
.

They are actually Square Pyramids, because their base is a

Square.

A pyramid is a shape where the outer surfaces are triangular and

converge at a point. The base of a pyramid is usually trilateral or

quadrilateral (but may be of any polygon shape), meaning that a

pyramid usually has four or five faces.



AREA

Surface Area:

1/3 × [Base Area] × Height


VOLUME

Volume:

1/3 × [Base Area] × Height











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