Question

Find the measure of interior angle of regular polygon with 10 sides

Answer 1

it's decagon and each interior angle of a decagon can be measured by the formula
{(n–2)180}/n
= (10 – 2)180/10
= 8×18
= 144°.

Answer 2

The measure of interior angle of regular polygon with 10 sides =(( n-2)/ n) ×180

n= 10

The measure of interior angle of regular polygon with 10 sides = ((10-2)/10) / 180
= (8/10)/180= 8×18 = 144°

The measure of interior angle of regular polygon with 10 sides = 144°