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 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 .
    A 314 Correct Answer Incorrect Answer
    B 290 Correct Answer Incorrect Answer
    C 340 Correct Answer Incorrect Answer
    D 388 Correct Answer Incorrect Answer
    E 225 Correct Answer Incorrect Answer

    Solution

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