Question

What is the Sin (C) in triangle ABC? /20 20 21 2129 29

Answer 1

To answer this question, we need to take into account that the reference angle is B. Since this angle, we need to find the opposite or the adjacent side to this angle.

The opposite side to angle C is 21 (BA), and the adjacent side is CB. We have that the side CA is the hypotenuse of this right triangle.

By definition, the sine is the ratio of the opposite side of the right triangle over the hypotenuse:

`\sin (C)=(opp)/(hyp)\Rightarrow\sin (C)=(21)/(29)`

Therefore, the answer is sin(C) = 21/29.