I don't see how they think of how to get from a->b->c

Jun 2011 ⋅ ⋅

If given values for A, B, and C, is it possible to solve for the curved (yellow) hypotenuse?

Dec 2010 ⋅

⋅ ⋅ #yellow

Discrete Math: (c) is false, why?! The book explanation did not clear things up.

Sep 2012 ⋅

⋅ ⋅ #c