Question
Lateral surface area of a cube is 420 cm2 less than the lateral surface area of a cylinder. Height of cylinder is 2R cm and radius is R
Lateral surface area of a cube is 420 cm2 less than the lateral surface area of a cylinder. Height of cylinder is 2R cm and radius is R
cm. If the side of cube is equal to the radius of cylinder, find the approximate area (in cm2) of a circle whose radius is (R + 3) cm .
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