Answer: 116°
Explanation:
180-52=128
128/2=64
Therefore, the two other interior angles measure 64° each, since this is an isosceles triangle with two equal sides.
Since the exterior angle forms a supplementary angle with the interior angle of 64°, you can subtract 64 from 180 to get the other part of the supplementary angle:
180-64=116
Therefore, the measure of the exterior angle is 116°.
Hope that helps シ