Question

Quadrilateral MRPN is a cyclic, angle R = (5x-3)°, angle N = (4x+4)°. Find the measure of angle R and angle N

Answer 1

(5x-3)+(4x+4)=180°

5x-3+4x+4=180°

9x+1=180°

9x=180°-1

9x=179

x=179/9=79.888888889

therefore,x=79.9