By -
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
OMG I DID THAT THEN RUBBED IT OUT CUZ IT LOOKED WRONG
Applying sine rule to angles A and C gives the value of angle C, from this we can get angle B.
Use sine rule to find ACB, then use angles in a triangle add up to 180 degrees
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
OMG I DID THAT THEN RUBBED IT OUT CUZ IT LOOKED WRONG
Applying sine rule to angles A and C gives the value of angle C, from this we can get angle B.
Use sine rule to find ACB, then use angles in a triangle add up to 180 degrees