I thought to use Pythagorean Theorem to find CB but I also need to find CL and BL....
CB= 12.6... maybe....
BL = x CL = 12-x
We can solve this using the angle bisector theorem:
12/4 = (12-x)/x
12x = 4(12-x)
12x = 48-4x
16x = 48
x = 3 BL = 3 CL = 9