Respuesta :

Answer:

x=123 degree

Step-by-step explanation:

sum of angles in a straight line=180 degree

angle one=57 degree

second angle=x

hence,x+57=180

x=180-57

x=123 degree

kamraaa
The square represents that this angle is 90°. Therefore to find x you subtract 57° from 90° which gives 33°.

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