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nlexa [21]
3 years ago
14

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

Mathematics
1 answer:
Lana71 [14]3 years ago
3 0
(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}
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Answer:

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