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A semi circular sheet of diameter 28 centimetre us bent into an open conical cup find depth and capacity of a cup?
Rajeshkathuriagp6667
Depth of cone = Radius of semicircle = 28/2 cm = 14 cm
Circumference of the base of cone = Arc of semicircle = 0.5*pi*28 = 14*pi cm
Therefore radius of base = 14*pi/(2*pi) = 7 cm
Capacity = 1/3*pi*r2*h where r is the radius of the base of the cone.
= 1/3*pi*72*14 = 718 cm3
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