SOLUTION: The edges of the bases of the frustum of a regular square pyramid have length 5 and 9, and the slant height of the frustum is 6. What is the surface area of the frustum.

Algebra ->  Bodies-in-space -> SOLUTION: The edges of the bases of the frustum of a regular square pyramid have length 5 and 9, and the slant height of the frustum is 6. What is the surface area of the frustum.       Log On


   

Question 1137435: The edges of the bases of the frustum of a regular square pyramid have length 5 and 9, and the slant height of the frustum is 6. What is the surface area of the frustum.
Answer by ikleyn(52781) About Me  (Show Source):
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= 5%5E2 + 6%5E2 + 4%2A%28%286%2B5%29%2F2%29%2A6 = 193 square units.


Two base areas plus 4 equal areas of lateral sides, each of which is a trapezoid.