Surface Area of Pyramids and Cones

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Chapter Area, Pythagorean Theorem, and Volume 14 Copyright © 2013, 2010, and 2007, Pearson Education, Inc.
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Surface Area of Pyramids and Cones Section 12-3 Surface Area of Pyramids and Cones

Theorem 12-4 Surface Area of a Regular Pyramid The surface area S of a regular pyramid is where B is the area of the base, P is the perimeter of a base and l is the slant height.

If you are missing the slant height on a square pyramid, use the Pythagorean Theorem

Theorem 12-5 Surface Area of a Right Cone The surface area S of a right cone is where B is the area of the base, r is the radius of a base and l is the slant height.

If you are missing the slant height on a right cone, use the Pythagorean Theorem