Question

    A semicircle has a radius of 7 cm. What is the perimeter

    of the semicircle?
    A 21 cm Correct Answer Incorrect Answer
    B 28 cm Correct Answer Incorrect Answer
    C 30 cm Correct Answer Incorrect Answer
    D 36 cm Correct Answer Incorrect Answer

    Solution

    The perimeter of a semicircle is given by the formula: Perimeter = πr + 2r Substitute the given radius: Perimeter = 22/7 × 7 + 2 × 7 = 22 + 14 = 36 cm Correct Option: d

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