Given the triangle below, what is m < b, rounded to the nearest tenth?

Option A:

m∠B = 42.1°

Solution:

Given data:

b = 18, c = 15 and m∠C = 34°

Using sine formula:

Substitute the given values.

Do cross multiplication.

Divide by 15 on both sides.

Switch the sides.

m∠B = 42.1°

Option A is the correct answer.

the square root of what number? if you add that, then someone will probably answer the question.