



 
Hi Felicia,
The law of sines tells us that
Solve for sin(BCA) and then use the inverse sine function to find the measure of the angle BCA. Since the sum of the angles on a triangle is 180^{o} you can then find the measure of the angle CAB. Now use the law of sines again to find the length of BC. Penny  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 