Question

.The four angles of a quadrilateral are in the ratio of 2:4:5:7 find the largest angle of the quadrilateral​

Answer 1

Given Ratio- 2:4:5:7

We know that the sum of angles of a quadrilateral is 360°

Let the angles be

2x

4x

5x

7x

2x+4x+5x+7x= 360°

18x=360°

x=360/18

x=20

2x= 2×20 = 40°

4x= 4×20 = 80°

5x= 5×20 = 100°

7x= 7×20 = 140°

The largest angles is.....

140°