A road sign is in the shape of a regular heptagon

Asked by maham237 @ 22/12/2020 in Mathematics viewed by 359 People

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

Answered by maham237 @ 22/12/2020

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

Take any three non-collinear points a b c and draw triangle a,b,c. through each vertex of the triangle draw a line parallel to the opposite side using ruler and compass

Asked by wiki @ 15/11/2022 in Mathematics viewed by 1473 persons

A road sign is in the shape of a regular heptagon

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