Unit 4 Flashcard Review: Rigid Transformations

Front

What is a translation in geometry?

Back

A translation is a type of rigid transformation that moves every point of a shape the same distance in a specified direction.

Front

Write a rule for the translation that moves a point 2 units to the right and 1 unit down.

Back

(x + 2, y - 1)

Front

What are the three types of rigid transformations?

Back

Translations, reflections, and rotations.

Front

What is the angle of rotation for a square?

Back

Multiples of 90 degrees.

Front

When translating a point, what operation do you perform on the x and y coordinates?

Back

You add or subtract a number.

Front

What is the angle of rotation for a 270° counterclockwise rotation about the origin?

Back

270°.

Front

What is a reflection in geometry?

Back

A reflection is a type of rigid transformation that flips a shape over a line, creating a mirror image.

Front

What is a rotation in geometry?

Back

A rotation is a type of rigid transformation that turns a shape around a fixed point at a certain angle.

Front

What does it mean for a transformation to be rigid?

Back

A rigid transformation preserves the shape and size of a figure.

Front

If a point (3, 4) is translated using the rule (x - 1, y + 2), what is the new point?

Back

(2, 6).