Question

Find the measure of each interior angle of a regular pentagon.
answers - 176°, 108°, 120°, 150°

Answer 1

Sum of all interior angles=(n-2)180
where n=no. of sides
For regular pentagon, sum of all interior angles is 540
so one angle=540/5=108

Answer 2

sum of exterior angles=360
each exterior angle of a regular polygon of n sides=360/n