(i) A right circular cylinder has radius 7 cm and height 10 cm, what will be its curved surface area ? (ii) The area of the base of a right circular cylinder is πa^2 cm² and height is b cm, what will be its curved surface area ? of eric 11 and heicht 20 cm
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The radius of a right circular cylinder = 7 cm
⇒ Height = 2 × radius = 2 × 7 = 14 cm
⇒ The curved surface area of the cylinder = 2πrh
⇒ The curved surface area of the cylinder = 616 cm2
∴ The curved surface area of the cylinder is 616 cm2
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∴ The curved surface area of the cylinder is 616 cm2 .
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