Mensuration-1

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The radius of a cylinder is 14 cm. Its height is 20 cm. Find out its volume,
curved area and total surface area.

Solution: Volume of cylinder = π r2 h

= π x 142 x 20

= 3920 π cm3

Curved surface area = 2 π r h

= 2 x π x 14 x 20

= 560 π cm2

Total surface area = 2 π r (h + r)

= 2 x π x 14 (20 + 14)

952 π cm2

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