Question

(a) The four angles of a quadrilateral are 2:4:1:5. Find the angles.​

Answer 1

Answer:

60,120,30,150

Step-by-step explanation:

Answer 2

Step-by-step explanation:

The sum of angles of a quadrilateral is 360°.

so,

let the common ratio be x, then

2x + 4x + x + 5x = 360°

12x = 360°

x = 360°/12

x = 30°

The angles are,

2x = 2(30°) = 60°

4x = 4(30°) = 120°

x = 30°

5x = 5(30°) = 150°