Question

How do you solve a scalene triangle with three angles: A=121°, B=38°, C=21°; and one side b=24 between angles A and C. How do you get the other two sides?

Answer 1

You should use the law of cosines or the law of sines, in this case law of sines would be easier. Here's how it goes: A/sin(a) = B/sin(b) = C/sin(c)
The capital letters are the side lengths, and their lowercase counterparts are the angles opposite them. So, there you have it.