Transformations Review

Front

Translations, reflections, rotations, and dilations are all known as _____________.

Back

transformations

Front

What type of rotation does this represent (from red to blue)?

Back

180⁰

Front

What is a reflection?

Back

When you flip or mirror a polygon across a line.

Front

Rotation Rules (clockwise): 180° rotation: (x, y)→(-x, -y). What are the coordinates of C' after a rotation of 180° clockwise?

Back

(-3, -1)

Front

What is a dilation?

Back

When you enlarge or reduce a polygon.

Front

What is the definition of a transformation in geometry?

Back

A change in the position, size, or shape of a figure.

Front

What is the effect of a translation on a shape?

Back

It moves the shape to a different location without changing its size or orientation.

Front

What is the difference between rigid and non-rigid transformations?

Back

Rigid transformations preserve size and shape; non-rigid transformations do not.

Front

What are the coordinates of a point (2, 3) after a 90° counterclockwise rotation around the origin?

Back

(-3, 2)

Front

What is the line of reflection?

Back

A line across which a figure is flipped to create a mirror image.