Posted by Am on Friday, August 3, 2012 at 8:07pm.
Point C is the center of the circle. If angle ACB measures 4 x plus 12 degrees and AB measures x plus 13 degrees, find x.

geometry  eh?  Steve, Saturday, August 4, 2012 at 4:51am
what is AB? the angle subtending the arc AB? If so, then it is also angle ACB, so
4x+12 = x+13
x = 1/3