Definition:Triangle (Geometry)/Isosceles/Base

Definition

 * IsoscelesTriangle.png

The base of an isosceles triangle is specifically defined to be the side which is a different length from the other two.

In the above diagram, $BC$ is the base.

Also see

 * Definition:Base of Triangle: of any general triangle, the base can be specified as any of the three sides, usually whichever happens to be at the bottom of any diagram in whatever orientation that the triangle happens to be drawn.