a friend told me about this website and said people were very helpful. so I'm gonna give it a shot. I'm having some trouble with a few trig word problems.
A reflecting telescope has a mirror shaped paraboloid of revolution. If the distance from the vertex to the focus is 26 feet and the distance across the top of the mirror is 58 inches, how deep is the mirror in the center?
I can't get a grasp on how I should draw this to set it up.. or if I even need to..