Question

Pls help me with this. You don't need to show your work.

Answer 1

72

Explanation:

Did this before !

Answer 2

`(a+b)^\circ=108^\circ\\\\2a^\circ=b^\circ`

so:


`(a+b)^\circ=(a+2a)^\circ=3a^\circ=108^\circ\\\\a^\circ=36^\circ`

and


`b^\circ=108^\circ-a^\circ=108^\circ-36^\circ=72^\circ\\\\\boxed{m\angle QNS=b^\circ=72^\circ}`