Unit 3 Test Review: Congruence

Front

What is congruence in geometry?

Back

Congruence in geometry means that two figures have the same shape and size. They can be superimposed on each other.

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 equal to two angles and the included side of another triangle.

Front

What does SSS stand for in triangle congruence?

Back

SSS stands for Side-Side-Side, a criterion for triangle congruence where all three sides of one triangle are equal to the three sides of another triangle.

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 equal to two sides and the included angle of another triangle.

Front

How do you determine if two triangles are congruent?

Back

To determine if two triangles are congruent, you can use congruence criteria such as ASA, SSS, SAS, AAS, or HL.

Front

What is the value of y that makes triangle ABC equilateral if one side is 18?

Back

y = 18, since all sides of an equilateral triangle are equal.

Front

If ∠E ≅ ∠A, what does this mean?

Back

It means that angle E is congruent to angle A, indicating they have the same measure.

Front

What is a transformation in geometry?

Back

A transformation in geometry is an operation that moves or changes a shape in some way, such as translation, rotation, reflection, or dilation.

Front

What is the purpose of using transformations to prove congruence?

Back

Transformations are used to show that two figures can be made to coincide, thus proving they are congruent.

Front

What is the angle bisector?

Back

An angle bisector is a line or ray that divides an angle into two equal parts.