HG M5 D4 Triangle Flashcard Review

Front

What does AAS stand for in triangle congruence?

Back

AAS stands for Angle-Angle-Side, a theorem used to prove that two triangles are congruent if two angles and the non-included side of one triangle are equal to the corresponding parts of another triangle.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What does the Vertical Angle Theorem state?

Back

The Vertical Angle Theorem states that opposite angles formed by two intersecting lines are equal.

Front

What is the definition of congruence in geometry?

Back

Congruence in geometry means that two figures have the same shape and size, and can be made to coincide by rigid transformations such as translation, rotation, or reflection.

Front

What is the SAS Congruence Theorem?

Back

The SAS (Side-Angle-Side) Congruence Theorem states that if two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, then the two triangles are congruent.

Front

What is the definition of the Reflexive Property?

Back

The Reflexive Property states that any geometric figure is congruent to itself.

Front

What does the HL Congruence Theorem apply to?

Back

The HL (Hypotenuse-Leg) Congruence Theorem applies to right triangles, stating that if the hypotenuse and one leg of one right triangle are equal to the hypotenuse and one leg of another right triangle, then the triangles are congruent.

Front

What is the AAS Congruence Theorem?

Back

The AAS (Angle-Angle-Side) Congruence Theorem states that if two angles and a non-included side of one triangle are equal to the corresponding parts of another triangle, then the two triangles are congruent.

Front

What is the measure of an angle that is complementary to a 45-degree angle?

Back

An angle that is complementary to a 45-degree angle measures 45 degrees.