Question

Find each interior angle of the regular
polygons whose number of sides or given
below. (A) .10. (b) 18​

Answer 1

Answer:

Easy method:

each ext. angle=360/n

int. angle= 180-360/n

i) int angle= 180-36=144 degrees

ii) int angle=180-20=140 degrees

Answer 2

Answer:

A. angle=(20-4)×90

16×90=1440

B. (36-4)×90

32×90=2880