Answer:
40°, 80°, 100°, and 140°
Explanation:
All the angles in a quadrilateral add up to 360°
Use the given ratio to write an equation.
2x +4x +5x +7x=360
Combine like terms.
18x = 360
Divide by 18.
x = 20
The angles are 2x, 4x, 5x, and 7x.
Substitute 20 for the x.
2(20) = 40
4(20) = 80
5(20) = 100
7(20) = 140
The angles are 40°, 80°, 100°, and 140°