Isosceles Triangle
Definition

An isosceles triangle is a triangle with two congruent sides (and two congruent angles).

Isosceles Triangle

An isosceles triangle is a triangle with two sides of equal length (and two angles of equal measure).

Isosceles Triangle

Note that "isosceles" usually means "exactly two" when referring to triangles, but usually means "two or more" when referring to polygons with more than two sides.


Demonstration
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