Question

Find the measure of a exterior angle of a equilateral triangle

Answer 1

Hey friend,  Harish here.

Here is your answer:

We know that,

Angle measure of an equilateral triangle = 60°.

&  Measure of exterior angle = 180° - Interior angle.

⇒ Exterior angle = 180° -  60° = 120°.

Therefore exterior angle of an Equilateral triangle is 120°.
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Hope my answer is helpful to you.