I can perform rotations of polygons on the coordinate plane in increments of 90 degrees.

Rotations:
When we do rotations, we rotate images about (or around) a point called the center of rotation. The number of degrees a figure rotates is the angle of rotation. The default direction of rotation is counterclockwise. Unless otherwise stated, assume you should rotate counterclockwise.

Like translations and reflections, rotations are rigid motions. This means the preimage and the image are congruent (same side lengths and angles).

These shortcuts can be used when you rotate an image in increments of 90 degrees about the origin of the coordinate plane:

PQRS has vertices P(1, 1), Q(3, 3), R(4, 1), and S(3, 0). Draw the image if PQRS is rotated 90 degrees clockwise about the origin.

PRS has vertices P(-3, 2), R(2, 5), and S(0, 0). What are the coordinates of the image if PRS is rotated 280 degrees about the origin?

Start your work with a neighbor and work on your own when you're ready!

Complete these problems (front and back for a 3)

Additional practice (one point per page)