Question

Find the Unknown angle a​

Answer 1

Answer:

a=210

360-(100+50) =360-150=210

Answer 2

Answer:

105

Step-by-step explanation:

All angles add up to 360 in a quadrilateral.

So that means:

50+100+a+a=360

150+2a=360

2a=360-150

2a=210

a=210/2

a=105

                                      HOPE IT HELPS!