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Unit 8 Lesson 3 – Surface Area of Pyramids and Cones. Pyramid:. A polyhedron with one base. The faces of the solid, not including the base. Lateral Face:. The perpendicular distance from the vertex to the base. Height:. The height of one of the lateral faces. Slant Height:.
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Unit 8 Lesson 3 – Surface Area of Pyramids and Cones
Pyramid: A polyhedron with one base
The faces of the solid, not including the base Lateral Face:
The perpendicular distance from the vertex to the base Height: The height of one of the lateral faces Slant Height:
A pyramid with a regular polygon as a base Regular Pyramid:
One circular base Cone:
Surface Area of a Regular Pyramid: B is the area of the base P is the perimeter of the base
1. Find the surface area of the regular pyramid. B = s2 P = 9+9+9+9 B = (9)2 P = 36 B = 81
2. Find the surface area of the regular pyramid. 10 204 B = s2 P = B = (20)2 P = 80 B = 400
3. Find the surface area of the regular pyramid. P = (10)(5) P = 50