Question

what is the measure of exterior angle of triangle​

Answer 1

Answer:

The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles. (Non-adjacent interior angles may also be referred to as remote interior angles.)

Answer 2

The measure of an exterior angle of a triangle is the sum of its interior opposite angles.

Given:

A triangle

To find:

The measure of an exterior angle of the triangle

Solution:

We can find the solution by following the given steps.

Let us assume that the triangle is equilateral.

Now we know that the interior angles of this triangle are 60° each.

The measure of an exterior angle of this triangle will be the sum of its interior opposite angles.

The measure of exterior angle= 60°+60°

= 120°

Therefore, the measure of an exterior angle of an equilateral triangle is 120°.