4. Two marks exercise problems I

1. The angles of a quadrilateral are in the ratio \(2:4:5:7\). Find all the angles.

 

The angles are $i\mathrm{°},i\mathrm{°},i\mathrm{°},i\mathrm{°}$.

 

[Note: Enter the angles in the given order.]

 

 

2. In a quadrilateral \(ABCD\), \(∠A = 72^\circ\) and \(∠C\) is the supplementary of \(∠A\). The other two angles are \(2x-10\) and \(x + 4\). Find the value of \(x\) and the measure of all the angles.

 

 

The angles are $i\mathrm{°},i\mathrm{°},i\mathrm{°},i\mathrm{°}$

 

[Note: Enter the angles in the ascending order.]