SOLUTION: THE LATERAL AREA OF THE FRUSTUM IS EQUIVALENT TO

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Question 954689: THE LATERAL AREA OF THE FRUSTUM IS EQUIVALENT TO

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
The frustum is that portion of a solid which lies between two parallel planes cutting the solid and has a top base radius r%5B1%5D, bottom base radius r%5B2%5D, height h, and slant height s.
slant height (s) could be found using a formula:
s=sqrt%28%28r%5B1%5D-r%5B2%5D%29%29%5E2%2Bh%5E2%29
The LATERAL surface area, not including the top and bottom circles, is
LA=pi%2A%28r%5B1%5D%2Br%5B2%5D%29s
LA=pi%2A%28r%5B1%5D%2Br%5B2%5D%29sqrt%28%28r%5B1%5D-r%5B2%5D%29%29%5E2%2Bh%5E2%29
and the TOTAL surface area will be greater for a top base and bottom base area which are r%5B1%5D%5E2%2Api and r%5B2%5D%5E2%2Api