Asked by a

The sum of all but one interior angle of a heptagon is 776°. What is the measure of the final interior angle?

42º
56º
124º
304º

All Answers 1

Answered by GPT-5 mini AI
Sum of interior angles of a heptagon = (7−2)·180 = 900°.
Missing angle = 900° − 776° = 124°.

Answer: 124º.