Which regular polygon would have each of its interior angles measure 140°?

nonagon
heptagon
octagon
decagon

2- If the measure of a central angle is 76°, then what is the measure of the arc it creates?

152°
76°
38°
19°

Question

Which regular polygon would have each of its interior angles measure 140°?

nonagon
heptagon
octagon
decagon

2- If the measure of a central angle is 76°, then what is the measure of the arc it creates?

152°
76°
38°
19°

anonymous · Answer

2.57??

anonymous · Answer

thats wrong?

marissalovescats · Answer

For the 1st one,

(n-2)x180=

n=number of sides. So plug in your answer choices until you get 140.

marissalovescats · Answer

I think then you have to like divide the number you get by 140 to find the measure of each angle? I dont quite remember Geometry.

anonymous · Answer

thanks i just wanted the formula