Question

AOB is a straight line.If angle BOC, angle COD and angle DOA be in the ratio 2:3:4, find the measure of each of these angles​

Answer 1

Answer:

We know that a straight line has an angle of 180°

Let the ratios be 2x, 3x, 4x respectively for each of the angles AOB, BOC, COD

BOC+ DOA +COD=180

2X + 3X + 4X =180

9X=180

x =180/9

x =20

putting the value of x

BOC=2×20=40

DOA=3×20=60

COD=4×20=80

HOPE IT HELPS!!