Ch5 Practice Flashcard: Congruent Triangles

Front

What does AAS stand for in triangle congruence?

Back

AAS stands for Angle-Angle-Side, a criterion for triangle congruence where two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of another triangle.

Front

What is the definition of congruent triangles?

Back

Congruent triangles are triangles that are identical in shape and size, meaning all corresponding sides and angles are equal.

Front

What does SAS stand for in triangle congruence?

Back

SAS stands for Side-Angle-Side, a criterion for triangle congruence where two sides and the included angle of one triangle are congruent to two sides and the corresponding included angle of another triangle.

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a criterion for triangle congruence where two angles and the included side of one triangle are congruent to two angles and the corresponding included side of another triangle.

Front

What is the Reflexive Property?

Back

The Reflexive Property states that any geometric figure is congruent to itself, meaning for any triangle ABC, triangle ABC ≅ triangle ABC.

Front

What are Alternate Interior Angles?

Back

Alternate Interior Angles are pairs of angles that are on opposite sides of a transversal and inside two parallel lines. They are congruent when the lines are parallel.

Front

If two sides of a triangle measure 6 and 9, what is the range of possible measures for the third side?

Back

Front

What is the Triangle Inequality Theorem?

Back

The Triangle Inequality Theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Front

If ∆LMK ≅ ∆LMT, what can we conclude about the angles?

Back

If ∆LMK ≅ ∆LMT, then corresponding angles are congruent, meaning ∠K ≅ ∠T, ∠M ≅ ∠M, and ∠L ≅ ∠L.

Front

What is the definition of Midpoint?

Back

A Midpoint is a point that divides a line segment into two equal parts.