Question

encontre o ângulo interno (ai) e o ângulo externo (ae) de :

a- eneágono regular

b- hexágono regular

Answer 1

A
S=(N-2)*h/N
S=9-2=7
7*180=1260
1260:9=140

B ///S=(N-2)*h/N
6-2=4
4*180=720
720/6=120
a=140°
b=120°

Ae=360/n
A=360/9=40°
B=360/6=60°