Question

find the measure of the exterior angle, a. a = ?° 33° 37°

Explanation:

Step1: <Use exterior angle theorem>

The exterior angle theorem states that an exterior angle of a triangle is equal to the sum of the two non - adjacent interior angles.
$$a=33^{\circ}+37^{\circ}$$

Step2: <Calculate the sum>

Add the two given angles.
$$a = 70^{\circ}$$

Answer:

$70$