Question

the sum of all but one interior angle of a heptagon is 776°. what is the measure of the final interior angle? 42ş 56ş 124ş 304ş

Answer 1

124°

Explanation:

We know

The sum of all but one interior angle of a heptagon is 776°

What is the measure of the final interior angle?

Sum of interior angles = (n - 2) · 180°

Heptagon has 7 sides.

(7 - 2) · 180 = 900°

Then we take

900 - 776 = 124°

So, the answer is 124°.