Find the length of C if the measure of angle A=62 degrees, the measure of angle B=39 degrees and b=15.

Most likely the figure is a triangle. Thus, the sum of the angles is 180 and the third angle is:

180 - 62 - 39 = 79 < - - This will be angle c

We then use the law of sines to find the length C.

a/sin A = c/sin C = b/sin B

length C = (15/sin39) (sin 79)

length C = 23.40