Multiple Choice Questions on An exterior angle of a regular polygon is 72 deg then sum of all the interior angles is ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

An exterior angle of a regular polygon is 72 deg then sum of all the interior angles is ........

Quantitative Aptitude ( CCS) Geometry
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    An exterior angle of a regular polygon is 72°, then sum of all the interior angles is:

    640°

    Incorrect Answer

    400°

    Incorrect Answer

    540°

    Correct Answer

    300°

    Incorrect Answer
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    Explanation:

    Number of sides = (360°)/72 = 5
    Sum of interior angle = (n – 2) × 180°
    = (5 – 2) × 180°
    = 540°

    By: MIRZA SADDAM HUSSAIN
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