Triangle Congruence Test Review

Front

What does ASA stand for in triangle congruence?

Back

ASA stands for Angle-Side-Angle, a criterion for triangle congruence.

Front

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

Back

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

Front

What is the definition of congruent triangles?

Back

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

Front

What additional information is needed to prove two triangles are congruent by ASA?

Back

You need to know the lengths of one side and the measures of the two angles adjacent to that side.

Front

What is the significance of the statement 'AD = AD' in a proof?

Back

It represents the Reflexive Property, which states that a quantity is equal to itself, often used to show that a side is common to both triangles.

Front

What type of triangle has one right angle and no equal sides?

Back

A right scalene triangle.

Front

What are the three main criteria for triangle congruence?

Back

The three main criteria are SSS (Side-Side-Side), SAS (Side-Angle-Side), and ASA (Angle-Side-Angle).

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.

Front

What is the difference between an acute triangle and an obtuse triangle?

Back

An acute triangle has all angles less than 90 degrees, while an obtuse triangle has one angle greater than 90 degrees.

Front

What is the definition of a scalene triangle?

Back

A scalene triangle is a triangle in which all three sides are of different lengths.