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    Question

    When each internal angle of a

    regular polygon measures as 144°. Determine the number of sides in the polygon.
    A 18 Correct Answer Incorrect Answer
    B 10 Correct Answer Incorrect Answer
    C 12 Correct Answer Incorrect Answer
    D 15 Correct Answer Incorrect Answer

    Solution

    ATQ, 1440 = 1800 × (n-2)/n 144n = 180n -360 360 = 36n n = 10

    So, the polygon has 10 sides.

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