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Surface Area of Pyramids

Lesson on using the formula for finding the lateral and surface areas of a pyramid.
by

Richard Mackrell

on 8 May 2010

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Transcript of Surface Area of Pyramids

What properties
of a pyramid
help you identify
a shape as one? The Anatomy of a Pyramid In order to find the surface area, think about what shapes make up the pyramid's net and their area formulas... What shapes do you see?
How many of each?
What are their area formulas? Brainstorm Let's see how the names of the parts of the pyramid also label the parts of the net. Lateral Edge Base Edge Lateral
Face Slant Height Vertices ...same thing as the
perimeter of the base The Great Pyramid at Giza, Egypt was built about 2580 B.C. as the final resting place for Pharaoh Khufu. At the time it was built, its height was about 481 ft. Each edge of the square base was about 756 ft. long. What was the lateral area of the Great Pyramid? Let's find the surface area... How 'bout a few more...
Find the lateral and surface areas of each pyramid... The Areas of a Pyramid This is it...
Surface Area Formula ...sometimes you might need the Pythagorean Theorem to find the length of the slant height. Which part of the formula represents the
area of the lateral faces or lateral area?
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