An interior angle and an exterior angle are adjacent. The interior angle measures 84°. What is the measure of the exterior angle?
96
To find the measure of the exterior angle, you need to know that the sum of an interior angle and its adjacent exterior angle is always 180 degrees.
In this case, the interior angle measures 84 degrees.
So, to find the measure of the exterior angle, you subtract the measure of the interior angle from 180 degrees:
Exterior angle = 180 degrees - Interior angle
Exterior angle = 180 degrees - 84 degrees
Exterior angle = 96 degrees
Therefore, the measure of the exterior angle is 96 degrees.