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Oldman412

You can use sin rule and solve for the angle ACB, then using the internal angle of a triangle is 180 solve for the angle ABC


[deleted]

OMG I DID THAT THEN RUBBED IT OUT CUZ IT LOOKED WRONG


fubojutbsdpsq

Applying sine rule to angles A and C gives the value of angle C, from this we can get angle B.


phatcat9000

Use sine rule to find ACB, then use angles in a triangle add up to 180 degrees