Question
A solid circular metallic disc of radius 12 inches and
thickness 4 inches is melted and shaped into a solid disc of radius 16 inches. What is the thickness of the new disc in inches?Solution
Volume of cylinder = volume of disk therefore, πr2h = πr2h h = (12 × 12 × 4)/(16 × 16) = 2.25 inches
Vljayanagar was founded on the southern bank of the river
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It was named after the city of Vijaya...
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