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11 March, 15:29

A road sign is in the shape of a regular heptagon. What is the measure of each angle on the sign? Round to the nearest tenth.

128.6

900

64.3

231.4

+4
Answers (1)
  1. 11 March, 16:45
    0
    Answer

    A) 〖128.6〗^o

    Explanation

    The question requires us to find the interior angle of a regular heptagon.

    To do this first calculate the exterior angle of that polygon.

    The sum of exterior angles is 360o. A heptagon has 7 sides.

    So, one exterior angle = 〖360〗^o/7=〖51.4〗^o

    interior angle+exterior angle=〖180〗^o

    exterior=180-51.4=〖128.6〗^o
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