1. Find the volume, area of the curved surface and the total surface area of a cylinder
whose height and radius of base are 20 cm and 28 cm respectively
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→Given diameter of base=14cm
=radius =14/2=7cm
=h=20cm
=surface area of cylinder=2πr(r+h)
=2*22/7(7+20)
=44*22=1188sq.cm
=Volume of Cylinder=πr^2h
=22/7*7^2*2
=22*7*20=3080
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