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28 June, 13:30

How many sides does a regular polygon have if each exterior angle measures 72o?

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  1. 28 June, 13:44
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    Sum of the exterior angles is always 360°

    let n be the number of sides.

    Given: 72° exterior angle measure.

    n = 360°/72°

    n = 5

    The polygon has 5 sides. It is a pentagon.
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