Question

    The side of an equilateral triangle is 15 cm long. What

    is the radius of the circle circumscribing this equilateral triangle?
    A 6√3 cm Correct Answer Incorrect Answer
    B 5√3 cm Correct Answer Incorrect Answer
    C 4√3 cm Correct Answer Incorrect Answer
    D 3√3 cm Correct Answer Incorrect Answer

    Solution

    Radius of the circle circumscribing the equilateral triangle = (side/√3) = (15/√3) =15/√3 x (√3/√3) = 15√3/3 = 5√3  cm

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