Question

    Curved surface area of a cylinder is 440 cm². The base

    circumference is 44 cm. What is its volume?
    A 1240 cm³ Correct Answer Incorrect Answer
    B 3050 cm³ Correct Answer Incorrect Answer
    C 1540 cm³ Correct Answer Incorrect Answer
    D 710 cm³ Correct Answer Incorrect Answer

    Solution

    Circumference of a base of cylinder = 2 πr 2 πr = 44   2x (22/7) x r = 44 r = 44 x (7/44)     r = 7 cm The curved surface area of a cylinder = 2 πrh 2 πrh = 440   2x (22/7) × 7 × h = 440 h = 440 x (1/44)   h = 10 cm Volume of cylinder = πr²h Volume of cylinder = (22/7) × 7 × 7 × 10 = 1540 cm²

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