Transformations - Rigid Motions

Front

What is a rigid motion?

Back

A transformation that preserves distance and angle measures, meaning the shape and size of the figure remain unchanged.

Front

Define reflection in geometry.

Back

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

Front

What is the effect of a 90° clockwise rotation on a point (x, y)?

Back

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

Front

What is the effect of a 90° counterclockwise rotation on a point (x, y)?

Back

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

Front

How do you reflect a point (x, y) over the x-axis?

Back

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

Front

How do you reflect a point (x, y) over the y-axis?

Back

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

Front

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

Back

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

Front

What is translation in geometry?

Back

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

Front

How many lines of symmetry does a square have?

Back

A square has 4 lines of symmetry.

Front

How many lines of symmetry does a rectangle have?

Back

A rectangle has 2 lines of symmetry.