3 years ago

Does anyone know how to do this?

Mathematics

1 answer:

fgiga [73]3 years ago

7 0

Answer:

yes

Step-by-step explanation:

the angle that is equal to 57 and angle y are supplementary angles meaning that the two values added together will equal 180. So all you have to do is subtract 57 from 180 to get 123. So y = 123

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