AB, BC and CD are three sides of a regular octagon. Find the size of angle BAC. Give reasons for your answer.

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Muayyad Alsadi asked Feb 23, 2022

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AB, BC and CD are three sides of a regular octagon.

Find the size of angle BAC.
Give reasons for your answer.

AB, BC and CD are three sides of a regular octagon. Find the size of angle BAC. Give-example-1

Mathematics
high-school

Muayyad Alsadi asked Feb 23, 2022

by Muayyad Alsadi

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Answer:

22.5°

Explanation:

The exterior angle at B is 360°/8 = 45°. The congruent interior angles of the triangle at A and C total this amount. The angle BAC is 45°/2 = 22.5°.

Buzzsaw answered Mar 1, 2022

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