
A right circular cylinder has radius 3 and height 5. What is its lateral surface area (excluding bases)?
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Get StartedA right circular cylinder has radius 3 and height 5. What is its lateral surface area (excluding bases)?
Options:
- 30π
- 15π
- 45π
- 60π
Correct answer: 30π
Explanation: Lateral area = 2πrh. With r = 3 and h = 5 this equals 2π·3·5 = 30π, so the lateral surface area is 30π square units.
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