Question

if p, q, r be respectively the grade measure, degree measure and radian measure of the same angle A, prove that p - q = 20 r/π​

Answer 1

Step-by-step explanation:

Let the number of side of a polygon be 5x and angle a.

& for other polygon number of side be 4x and angle β. 

a=n(n−2)π=5x(5x−2)π:β=4(4x−2)πa−β=20π=xπ((55x−2)−(44x−2))

⇒x=2 

side : 10,8