13-11-2014
Mathematics

Answered

If the volume of a cylinder with the height of 3 feet is 75 cubic feet, find the surface area of a cylinder in square feet.
F25 G50 H80 J30

Answer :

dannyboy49 dannyboy49

13-11-2014

Surface area of cylinder = 2πrh+2πr²
Volume of cylinder = 2πr²×h
So:
75 = 2πr²×3
12.5 = πr²
r = 1.99(471140201)

A = 2π×1.99×3+2π×1.99²
= 62.39(265842) ft²

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