56:58 is tangent to circle G at point F. Circle G is shown. Line segment G F is a radius. Line segment F H is a tangent that intersects the circle at point F. A line is drawn from point H to point G and goes through a point on the circle. The length of F H is 35, and the length of the line segment from point H to the point on the circle is 25. The lengths of the radii are r. What is the length of the radius, r? 10 units 12 units 20 units 24 units