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Find the curved surface area of a cylinder with radius of base 7 cm and height 9.5 cm. (Use π = 22/7 )
Question

Find the curved surface area of a cylinder with radius of base 7 cm and height 9.5 cm. (Use π = 22/7 )

A.

420 cm²

B.

430 cm²

C.

428 cm²

D.

418 cm²

Correct option is D

Given:
Radius of the base of the cylinder, r = 7 cm
Height of the cylinder, h = 9.5 cm
π = 22/7
Formula Used:
The curved surface area (CSA) of a cylinder = 2πrh
Solution:
CSA = 2 ×227\frac{22}{7}​ × 7 × 9.5 = 2 × 22 × 9.5 = 418 cm²
The curved surface area of the cylinder is 418 cm².

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