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A game of Coin ...

Geometry Level 1

The no. coins,each of radius = 0.75 cm and thickness = 0.2 cm , to be melted to make a right circular cylinder of height 8 cm and radius 3 cm , is .......

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Excel in math and science

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It's hard to learn from lectures and videos

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including olympiad champions, researchers, and professionals.

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by Puneet Sharma

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