A leg of a triangle is one of its sides. For a right triangle, the term "leg" generally refers to a side other than the one opposite the right angle (which is termed the hypotenuse). Legs are also known as catheti.

# Leg

## See also

Cathetus, Hypotenuse, Triangle## Explore with Wolfram|Alpha

## Cite this as:

Weisstein, Eric W. "Leg." From *MathWorld*--A
Wolfram Web Resource. https://mathworld.wolfram.com/Leg.html