if the measurement of the interior angel is 90 , what is the measurement of the exterior angel?
Answer:
90°
Step-by-step explanation:
Required Answer:
Measurement of the exterior angle
Explanation:
Remember that interior angle and exterior angle are supplementary angles.
Now, let x be the measurement of the exterior angle.
Since the measurement of the interior angle is 90 degrees, we have
90° + x = 180°
=> 90° + x – 90° = 180° – 90°
=> x = 90°
Therefore, the exterior angle also measures 90°.
