Geometry Question - Given: O is the center of the circle, segment OG is perpendicular to segment FH; Prove: segment FG = segment GH (reference diagram in picture)

The Solution:
The given figure is
Clearly, the right triangles: HOG and FOG are congruent.
And OG is a bisector of segment FH.
It follows that FG = GH since FG is congruent to GH.