Question

One angle within a triangle is 76 degrees. What is the value of the exterior angle?

Answer 1

The value of the exterior angle is
`104\°`

Explanation:

we know that

The sum of the interior angle plus the exterior angle is equal to
`180\°`, because are supplementary angles.

Let

x-----> the measure of the exterior angle

so

`76\°+x=180\°`

solve for x

`x=180\°-76\°=104\°`