Respuesta :

rt212015

Answer:

I want to say the answer is D

Step-by-step explanation:

The angle is supplementary because if you remove that line it becomes a 180 degree angle so you would have to subtract 57 - 180 to find the value of x.

3mmxlee2
The last one is correct.

Because:

A supplimentary angle its a 180° angle. meaning that if you subtract 57 from 180 you will get 123 and 123+57=180°.

(Brainliest if this is correct or helped in any way?)
:)<3

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