SOLUTION: how do you calculate the surface area of a cone with height of 18 ft and r of 10 ft

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Question 69356: how do you calculate the surface area of a cone with height of 18 ft and r of 10 ft
Answer by zerosignal(28) About Me  (Show Source):
You can put this solution on YOUR website!
Formula for area of a cone is pi%2Ar%2Asqrt%28r%5E2%2Bh%5E2%29
if h = 18 & r = 10 then:
a+=+pi%2A10%2Asqrt%2810%5E2%2B18%5E2%29
a+=+pi%2A10%2Asqrt%28100%2B324%29
a+=+pi%2A10%2Asqrt%28424%29
a+=+pi%2A10%2A%2820.59126028%29
a+=+646.8935203ft%5E2