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Surface Area of Pyramids Return to table of contents.

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Presentation on theme: "Surface Area of Pyramids Return to table of contents."— Presentation transcript:

1 Surface Area of Pyramids Return to table of contents

2 Surface Area of Pyramids What is a pyramid? Polyhedron with one base and triangular faces that meet at a vertex How do you find Surface Area? Sum of the areas of all the surfaces of a 3-D Figure click to reveal

3 8 cm 7 cm 17.5 cm Find the Surface Area. go on to see steps

4 Find the Surface Area. 8 cm 7 cm 17.5 cm 8 cm 17.5 cm 7 cm 17.5 cm 7 cm Bottom Rectangle 8 x 7 56 Front/Back Triangles Left/Right Triangles Surface Area cm 2 8 cm

5 Find the surface area of a square pyramid with base edge of 4 inches and triangle height of 3 inches. 4 in 3 in Base 4 x TrianglesSurface Area in 2 click to reveal

6 Find the surface area. Be sure to look at the base to see if it is an equilateral or isosceles triangle (making all or two of the side triangles equivalent!). Base Triangles (all equal) Surface Area in 2 4 in 6 in 3.5 in click to reveal

7 42Which has a greater Surface Area, a square pyramid with a base edge of 8 in and a height of 4 in or a cube with an edge of 5 in? ASquare Pyramid BCube

8 43Find the Surface Area of a triangular pyramid with base edges of 8 in, base height of 4 in and a slant height of 10 in. 8 in 10 in 6.9 in

9 44Find the Surface Area. 9 m 12 m 11 m 6.7 m


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