A right triangle with sides 9 cm, 12 cm and 15 cm is rotated about the side of 9 cm to form a cone. The volume of the cone so formed is:
A. 432π cm3
B. 327π cm3
C. 334π cm3
D. 324π cm3
Answer: Option A
Solution (By Examveda Team)
Volume ⇒ $$\frac{1}{3}$$πr2h
⇒ $$\frac{1}{3}$$π × 12 × 12 × 9
⇒ 144 × 3π
⇒ 432π
This Question Belongs to Arithmetic Ability >> Mensuration 3D
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A sphere and a hemisphere have the same volume. The ratio of their curved surface area is:
A. $${2^{\frac{3}{2}}}:1$$
B. $${2^{\frac{2}{3}}}:1$$
C. $${4^{\frac{2}{3}}}:1$$
D. $${2^{\frac{1}{3}}}:1$$
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