Question

Curved surface area of a right circular cylinder is 4.4 sq.m. If the radius of the base of the cylinder is 0.7 m, find its height.

Answer 1

height = 1m

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Answer 2

Answer:

CSA of cylinder : 4.4sqm

Radius of cylinder : 0.7 m

Height of cylinder : ?

We know that,

CSA of cylinder =2×22/7×r×h

4.4 = 44/7×0.7×h

4.4 = 30.8/7×h

4.4×7=30.8×h

30.8= 30.8×h

30.8/30.8=h

1=h

h=1m

Hence, the height of the cylinder is 1m.