Question

In a quadrilateral ABCD, the angles a, b, c and d are in the ratio 1: 2 : 4: 5. ratio find the measure of each angles of the quadrilateral

Answer 1

x+2x+4x+5x=12x.
So 12x=360
x=30
2x=60
4x=120
5x=150
HOPE this will help.

Answer 2

angleA=30 angleB=60angle C=120angleD=180