Answer:
D
Explanation:
h = 3r
(r² π * h)/3 = 125π
(r²π * 3r)/3 = 125π
r²π * r = 125π
r³π = 125π
r³ π / π = 125π / π
r³ = 125
r = ∛125
r = 5 in
h = 5 * 3 = 15 in
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