A. 2.66 cm
B. 2.5 cm
C. 3 cm
D. 3.5 cm
4/3 π * 3 * 3 * 3 = 4/3 π[(3/2)3 + 23 + r3]
r = 1.25
d = 2.5
Correct Answer: 2.5 cm ✔
Last Updated: February 07, 2020
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