Question

please solve this question ​

Answer 1

Answer:

30 Degree

Step-by-step explanation:

Extend EA to make a triangle at PQ named ABX. Now angle BAX will be 180-50 = 130°

The total sum of angles in a triangle will have to be 180°

Now Angle ABX + Angle BAX + Angle AXB = 180

=> 20+130+AXB=180 => 150+AXB=180

=> AXB =180-150 => AXB = 30

Now as EAX is parallel to DC, Angle DCB = Angle AXB (Corresponding angles) = 30°