Answer:
B.
Step-by-step explanation:
Just took it. Edg 2020. Hope this helps :)
Yes, it’s option one where y is neg five
Divide the nonagon radially into 9 congruent, equilateral isosceles triangle. Each triangle has vertex angle of 360°/9 = 40°.
Interior angle of polygon = 180°-40° = 140°.
Sum of interior angles = 9(140°) = 1260°
Answer:
3
Step-by-step explanation:
