Question:
A right circular cylinder has radius 7 cm and height 10 cm. Find its curved surface area. (Take \(\pi=\frac{22}{7}\).)
A right circular cylinder has radius 7 cm and height 10 cm. Find its curved surface area. (Take \(\pi=\frac{22}{7}\).)
Show Hint
Picture the curved surface of the cylinder unrolled flat - it becomes a rectangle whose sides are the base circumference and the cylinder's height.
Updated On: Jul 8, 2026
- 420 cm\(^2\)
- 440 cm\(^2\)
- 480 cm\(^2\)
- 220 cm\(^2\)
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The Correct Option is B
Solution and Explanation
Curved surface area \(=2\pi r h = 2\times\frac{22}{7}\times 7\times 10 = 2\times 22\times 10 = 440\) cm\(^2\). Correct option: 440 cm\(^2\).
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