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Terms dealing with the properties of the angles and sides of triangles.

Leg of an isosceles triangle

One of the congruent sides of an isosceles triangle.

Exterior Angle

An angle that forms a linear pair with one of the interior angles of a polygon.

Remote Interior Angles

The interior angles of a triangle that do not share a vertex with a given exterior angle.


A concept map that shows a step-by-step process. Boxes represent the steps, and arrows connect the boxes to show how they are sequenced.

Biconditional Statement

A statement that includes both a conditional statement and its converse, usually written in "if and only if" from.

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