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The circumference of the base of …

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The circumference of the base of a cylinder is 22 CM if height is 7 cm then find its curved surface area

Posted by Jitendra Sharma 5 years, 3 months ago

CBSE > Class 09 > Mathematics

2 answers

Yogita Ingle 5 years, 3 months ago

Circumference of base of cylinder = 22 cm

Height of cylinder = 7 cm

So,

Circumference=2 πr = 22 Given

r= 22/2 π= 22(7)/2 (22) = 7/2 = 3.5

Radius of cylinder = 3.5 cm

∴ Curved surface area of cylinder = 2 π rh = 2× 22/7 × 3.5 × 7= 2 × 22/7 × 3.5 × 7 = 44 × 3.5 = 154 cm²

Jitendra Sharma 5 years, 3 months ago

154cm2

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