Question

In the given figure , find the measures of angle 1,2,and 3, if angle 4= 140° .​

Answer 1

let the angle be x

1x+2x+3x+4x=140

10x=140

x= 140/10

x=14

1x = 1 * 14 = 14

2x=2 * 14 =20

3x= 3*14=48

4x=4*14=56