What is the internal angle sum of a polygon with 20 sides?
A) 3,240°
B) 3,420°
C) 3,600°
D) 3,780°
HOPE THIS HELPS^^
Answer:
153.9
Step-by-step explanation:
You use the formula πr^2 for the area, where r is the radius of the circle which is equal to half the diameter
6
