The port support for a window air conditioning unit forms a triangle and an exterior angle. What is the measure of the exterior angle? The sides are (5x - 6) degreesand the other angle is 3x degrees and last angle is 90 degrees

The port support for a window air conditioning unit forms a triangle and an exterior angle. The sides are (5x - 6) degreesand the other angle is 3x degrees and last angle is 90 degrees.

The su, of the interior angles of the triangle is 180

(5x - 6) + 3x + 90 = 180

X = 12, so the angles are 54 and 36

The exterior angle will also form a 180 degree with the interior

Depending which exterior angle

1.) 180 - 54 = 126

2.) 180 - 36 = 144