- Use the Sine law to solve for the length of the indicated side.

I get too:

Sin 108/12.9 = sin 24/b

0.951056516.../12.9 = .406736643076/b

12.9/0.951056516 = b/.40673664307

12.9/0.951... = 13.563...

13.563 *.4067... = 5.516...

5.52 IS RIGHT!!!!! :)

StarStrike Feb 13, 2019