a solid frustum made of copper with r1=4cm, r2=5cm and h=20cm is melted to form cones of radius =7/2cm and h=20cm. find the number of cones formed.
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a solid frustum made of copper with r1=4cm, r2=5cm and h=20cm is melted to form cones of radius =7/2cm and h=20cm. find the number of cones formed.
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