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Class 7 Mathematics Length, Perimeter and Area: Surface Area

The area of curved surface of a cylinder is 6160 $cm^2$ . The height of the cylinder is 10cm. What is the radius of the cylinder in centimetres?
(Take $pi=22/7$ )]
A. 98
B. 14
C. 196
D. 968

(4m 4s)

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