Unit 1 Review: Rigid Transformations

Front

What is a rigid transformation?

Back

A transformation that preserves the shape and size of a figure, meaning all corresponding sides and angles remain congruent.

Front

What are the three types of rigid transformations?

Back

1. Translation 2. Rotation 3. Reflection

Front

What happens to the coordinates of a point when it is reflected over the x-axis?

Back

The y-coordinate changes sign, while the x-coordinate remains the same.

Front

What happens to the coordinates of a point when it is reflected over the y-axis?

Back

The x-coordinate changes sign, while the y-coordinate remains the same.

Front

What does it mean for two shapes to be congruent?

Back

Two shapes are congruent if they have the same size and shape, meaning all corresponding sides and angles are equal.

Front

What is a translation in geometry?

Back

A transformation that moves every point of a figure the same distance in the same direction.

Front

What is a reflection in geometry?

Back

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

Front

What is a rotation in geometry?

Back

A transformation that turns a figure around a fixed point, called the center of rotation, by a certain angle.

Front

If Triangle ABC is translated to Triangle A'B'C', what can we say about their corresponding sides and angles?

Back

They are congruent (EXACTLY the same as the original).

Front

What is the result of reflecting the point (4, 5) over the x-axis?

Back

The coordinates of the reflected point are (4, -5).