Law of Sines
Suppose we try to find the circumradius of a triangle , as shown below: How can we find it? Note that the triangle is isosceles, with the equal sides being radii of the circumcircle. To find these, we only need to know the angle and side length AC. Angle intercepts the arc , with O at the center of the circle. Angle also intercepts the same arc, but with point B on the circumference of the circle. This means (1)…