Question

Answer and explanation.

Answer 1

you have to change the 145* to 110* and flip it to the idol point in x

Explanation:

hope this helps, I was just doing this

Answer 2

The polygon is a pentagon and it has 5 sides so use the formula to find the sum of the interior angles that is (n-2)×180°.so,

(5-2)×180 = 540°

540-145-110-105-100 = 80°

so the answer is 80°