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Question

The height of a right circular cylinder is 7cm and radius is 3cm. Find its curvedsurface area, total surface area and volume.

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Solution

Given :Height of cylinder (h)=7cm
Radius of base (r)=3cm
Curved surface area of cylinder =2πrh
=2×75×3×7
=22×6
=132cm2
Total surface area of cylinder =2πr(h+r)
=2×227×3(7+3)
2×227×3×10
=13207
=188.57cm2
Volume of cylinder =πr2h
=227×3×3×7
=22×3×3
=198cm3
Hence, curved surface area of cylinder =132cm2
Total surface area =188.57cm2 and
Volume =198cm3

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