Valerie S.
asked • 03/08/17
The volume of a cylinder is 128 pi cubic inches. If the height of the cylinder is 2 inches, what is its diameter?
Michael J.
answered • 03/08/17
Effective High School STEM Tutor & CUNY Math Peer Leader
Volume of a cylinder is
V = π(d/2)2h
V = (d2/4)hπ
4V = d2hπ
(4V) / (πh) = d2
2√(V / (πh)) = d ----> diameter formula
where:
V = volume
d = diameter
h = height
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