A bucket is 12 cm in diameter at the top, 8 cm in diamete...
A bucket is 12 cm in diameter at the top, 8 cm in diameter at the bottom and 4 cm deep. Calculate its volume.
304π/3 cm3
144π cm3
128π cm3
72π cm3
Correct answer is A
Volume of a frustrum with top of radius R and bottom r and height h = 13π(R2+Rr+r2)
V = 13π×4×(62+6×4+42)
= 3043πcm3
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