Congruent Parts of Polygons
Base of an Isosceles Triangle
The non congruent side
of an isosceles triangle
Leg of a Right Triangle
The sides of a triangle
that are not the hypotenuse
Triangle
A polygon with three sides
Congruent Polygon
Polygons that have corresponding
sides congruent and corresponding
angles congruent
Hypotenuse
The side opposite
to the right angle
Vertex Angle of an Isosceles Triangle
The vertex angle is the
angle between the two legs
