The curved surface area of a solid circular cylinder of height 12 cm is 2640 cm2. What is the volume (in cm3) of the cylinder? (Take π = 22/7)
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Correct answer: A
Explanation
The correct answer is option 1 i.e. 46200.
Curved surface area of cylinder = 2πrh
According to the given question,
2 × (22/7) × r × 12 = 2640
⇒ r = (2640 × 7)/(2 × 12 × 22)
⇒ r = 35 cm
So, the volume of the cylinder, πr2h = (22/7) × (35)2 × 12
⇒ 46200