The numbers 20, 99, and 101 form a Pythagorean triple. A right triangle has heights 20, 99, and x where x is the shortest height. What is x?
just use Pythagoras's theorem to work it out. The Pythagorean triple that they gave you is irrelevant.
Since you want the shortest side, there will be a take away. (minus)
This is not possible in a right triangle.... the shorter side + the 20 side do not add up to more than 99 ....necessary to meet the triangle side length rule. .
Good spotting EP