Congruent Triangles

Front

What is the definition of congruent triangles?

Back

Triangles that have the same size and shape, meaning their corresponding sides and angles are equal.

Front

What is the Isosceles Triangle Theorem?

Back

If a triangle has two congruent sides, then the angles opposite those sides are also congruent.

Front

What is the Reflexive Property in geometry?

Back

Front

What are Alternate Interior Angles?

Back

Angles that are on opposite sides of a transversal and inside the two lines it intersects; they are congruent when the lines are parallel.

Front

What is the definition of Vertical Angles?

Back

Angles that are opposite each other when two lines intersect; they are always congruent.

Front

What is the Side-Angle-Side (SAS) Congruence Postulate?

Back

If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the triangles are congruent.

Front

What is the Angle-Side-Angle (ASA) Congruence Postulate?

Back

If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent.

Front

What is the Side-Side-Side (SSS) Congruence Postulate?

Back

If all three sides of one triangle are congruent to all three sides of another triangle, then the triangles are congruent.

Front

What is the definition of a Scalene Triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

Front

What is the definition of an Equilateral Triangle?

Back

A triangle in which all three sides are congruent and all three angles are equal to 60 degrees.