Question

In a cyclic quadrilateral abcd a=(2x+4) b=(y+3) x=(2y+10) and d=(4x-5).find the measure of each angle

Answer 1

2x+4+y+3+2y+10+4y-5 =180
9y+12=180
9y=180-12
9y=168
y=168/9=18.66666