Is the base of a right triangle the largest of the three sides?

Answer 1

The "base" of any triangle is whatever side it happens to be sitting on in the

drawing in which it's presented, and that could be any one of its three sides.

In a right triangle, the longest side is the "hypotenuse", which is the side opposite

the right angle. That's true whether or not the triangle happens to be drawn with

the hypotenuse on the bottom.