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 AAS stand for in triangle congruence?

Back

AAS stands for Angle-Angle-Side, a method to prove triangles are congruent by showing two angles and a non-included side are equal.

Front

What does SAS stand for in triangle congruence?

Back

SAS stands for Side-Angle-Side, a method to prove triangles are congruent by showing two sides and the included angle are equal.

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a method to prove triangles are congruent by showing two angles and the included side are equal.

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 acute triangle?

Back

A triangle that has all angles less than 90 degrees.

Front

What is the definition of a right triangle?

Back

A triangle that has one angle exactly equal to 90 degrees.

Front

What is the definition of an isosceles triangle?

Back

A triangle that has at least two sides of equal length.

Front

What is the definition of a scalene triangle?

Back

A triangle that has all sides of different lengths.

Front

How can you determine if two triangles are congruent using the SSS criterion?

Back

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