Rules of Rotation - West Branch High School

Rules of Rotation

Objective: Use the rotation rules to rotate images on the coordinate plane.

1

Graph A(5, 2), then graph B, the image of A under a 90? counterclockwise rotation about the origin.

Rule for 90? counterclockwise rotation:

A (5, 2)

2

Now graph C, the image of A under a 180? counterclockwise rotation about the origin.

Rule for 180? counterclockwise rotation:

B (- 2, 5)

A (5, 2)

3

Now graph D, the image of A under a 270? counterclockwise rotation about the origin.

Rule for 270? counterclockwise rotation:

B (- 2, 5) C (- 5, - 2)

A (5, 2)

4

What type of quadrilateral is ABCD? Why?

B (- 2, 5)

A (5, 2)

C (- 5, - 2)

D (2, - 5)

5

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