Khan Academy on a Stick
SSS to Show a Radius is Perpendicular to a Chord that it Bisects
More on the difference between a theorem and axiom. Proving a cool result using SSS
If the above player doesn't work, you can try this direct link.
More on the difference between a theorem and axiom. Proving a cool result using SSS
If the above player doesn't work, you can try this direct link.