Question

The angels a, b, c and d of a quadrilateral have measures in the ratio 2:4:5:7. Find the measures of these angle

Answer 1

Answer:

let all angles =2x,4x,5xand 7x

as we know

sum of all angles of a quadrilateral=360°

then using anle sum prop.

2x+4x+5x+7x=360

18x=360

x=360/18

x=20

therefore measure of each angle= 2x=2(20)=40°

4x=4(20)=80°

5x=5(20)=100°

7x=7(20)=140°

Answer 2

Answer:

a = 40

b = 80

c = 100

d = 140

thanks for points