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The measure of angle B is °
Step-by-step explanation:
Using law of sines ∠B can be found using,
where b,c denotes the side and B,C denotes the angle.
Also, it is given that ,
and ∠C=51°.
To find ∠B, let us substitute the values in this formula, we get,
Multiplying both sides by 10, we get,
Taking on both sides,
Rounding it off to the nearest degree,we get,
Thus, the measure of angle B is °