Semester Review Fall 2024

Front

What is the definition of congruent triangles?

Back

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

Front

What does the acronym ASA stand for in triangle congruence?

Back

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

Front

What is the SAS criterion for triangle congruence?

Back

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

Front

What is the definition of a transformation in geometry?

Back

A change in the position, size, or shape of a figure, including translations, rotations, reflections, and dilations.

Front

How do you perform a translation of a figure?

Back

By moving every point of the figure the same distance in a specified direction.

Front

What is the effect of a 180° rotation about the origin on a point (x, y)?

Back

The new coordinates will be (-x, -y).

Front

What is the definition of a reflection in geometry?

Back

A transformation that flips a figure over a line, creating a mirror image.

Front

What is the difference between a rotation and a reflection?

Back

A rotation turns a figure around a point, while a reflection flips it over a line.

Front

What is the purpose of using congruency statements in geometry?

Back

To indicate that two figures are congruent and to specify which parts correspond to each other.

Front

What does it mean if two triangles are not congruent?

Back

It means that at least one pair of corresponding sides or angles is not equal.