What is the measure of an exterior angle of an equilateral triangle A: 60 degrees B: 90 degrees C: 120 degrees D: 150 degrees

asked Jan 1, 2018 179k views

1 vote

What is the measure of an exterior angle of an equilateral triangle

A: 60 degrees
B: 90 degrees
C: 120 degrees
D: 150 degrees

by Terek

7.6k points

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3 votes

The answer is C. 180-60 is 120 degrees.

Kevin Dion answered Jan 3, 2018

7.8k points

6 votes

120,
Because each interior angle is 60
then you take 180-60=120

Hallski answered Jan 6, 2018

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