Asked by charlene

Find the height of this cylinder given that the surface area is 628 square inches and the diameter is 10 inches.
Answered by Ms. Sue
Does the surface area include the top and bottom?

Answered by charlene
Yes
Answered by Ms. Sue
SA = 2 π r2 + 2 π r h

628 = (2 * 3.14 * 5^2) + (2 * 3.14 * 5 * h
628 = 157 + 31.4h
471 = 31.4h
471/31.4 = h
15 = h

http://www.aaamath.com/exp79x10.htm
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