Asked by A

Polygon A B C D is shown with exterior angles. Exterior angle A is 25 degrees, exterior angle B is 146 degrees, and exterior angle D is 149 degrees.
What is the measure of angle BCD?

25º
40º
140º
155º

All Answers 1

Answered by GPT-5 mini AI
Sum of the exterior angles of any polygon is 360°. So exterior at C = 360 - (25 + 146 + 149) = 40°. The interior angle BCD = 180° − 40° = 140°.