Congruent Triangles

Front

What are congruent triangles?

Back

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

Front

What does SAS stand for in triangle congruence?

Back

Side-Angle-Side: If two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.

Front

What does AAS stand for in triangle congruence?

Back

Angle-Angle-Side: If two angles and a non-included side of one triangle are equal to two angles and the corresponding non-included side of another triangle, the triangles are congruent.

Front

What does ASA stand for in triangle congruence?

Back

Angle-Side-Angle: If two angles and the included side of one triangle are equal to two angles and the included side of another triangle, the triangles are congruent.

Front

What does SSS stand for in triangle congruence?

Back

Side-Side-Side: If all three sides of one triangle are equal to all three sides of another triangle, the triangles are congruent.

Front

Can two triangles be congruent if they only look the same?

Back

No, visual similarity is not sufficient for congruence; the corresponding sides and angles must be equal.

Front

What is the definition of an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Front

What is the definition of a right triangle?

Back

A triangle that has one angle equal to 90 degrees.

Front

What is the definition of an obtuse triangle?

Back

A triangle that has one angle greater than 90 degrees.

Front

What is the definition of an equilateral triangle?

Back

A triangle where all three sides are equal in length and all three angles are equal, each measuring 60 degrees.