Ex 13.2, 6
Curved surface area of a right circular cylinder is 4.4 m2. If the radius of the base of the cylinder is 0.7 m, find its height. [ = 22/7]
Let the height of the circular cylinder be h.
Radius (r) of the base of cylinder = 0.7 m
Curved Surface Area of cylinder = 2 rh
4.4 m2 = 2 rh
4.4 m2 = (2 22/7 0.7 ) m
44/10 m = (2 22/7 7/10 )
44 m = (2 22 )
h = 44/(2 22)
h = 1 m
Therefore, the height of the cylinder is 1 m.

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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