Respuesta :

The answer is 10°.
180° = 170° + x
x = 180° - 170°
x = 10°
BZC
Your answer is 10 because if one side is 170 then the other side is 10. Just pretend that the line from A to B is a straight line (180 degrees), so then just do 180 - 170 = 10
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