UPSKILL MATH PLUS
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Learn more1. If the radius of the base of a right circular cylinder is halved keeping the same height, then the ratio of the volume of the cylinder thus obtained to the volume of the original cylinder is:
2. In a hollow cylinder, the sum of the external and internal radii is 14 \(cm\) and the width is 4 \(cm\). If its height is 20 \(cm\), then the volume of the material in it is:
3. If the radius of the base of a cone is tripled and the height is doubled then the volume is:
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