Question

9 and 10 PLEASE ITS SO HARD!!!!

Answer 1

9) Here, Two angles are unknown without any relation not even a variable.
So, we could calculate the sum of that two unknown angles only,not their individual magnitude.

It would be: 50 + 152 + missing angles = 360
m.a = 360 - 202
m.a = 158

In short, Sum of two Unknown angles would be 158

10) Here, ABCD is a Quadrilateral, so their adjacent side would make a linear pair equation, means their sum would be equal to 180

So, ∠1 + ∠2 = 180

Hope this helps!

Answer 2

For 9: All the angle should add up  to 360 degrees.

So 152+50=202

360-202=158 degrees (Missing angle measure)

Method being used: All angle should add up to 360 degrees.