Practice with Rotations Topic Index | Geometry Index | Regents Exam Prep Center

Answer the following questions dealing with rotations.

This pinwheel is spinning in a counterclockwise direction. True False

Explanation The pinwheel is spinning in the opposite direction to the hands on a clock.

The number of degrees separating the center lines of the blades on this fan is . True False

Explanation There are 4 blades on the fan. Divide 360 degrees by 4. The blades are 90 degrees apart.

This drawing has been rotated . yes no

Explanation The rotation has been 90 degrees.

This triangle has been rotated in a clockwise direction. True False

Explanation Notice the movement of A to A' and so on. It is in a clockwise direction.

Fish 2 is a 45 degree counter- clockwise rotation of Fish 1. True False

Explanation Remember 45 degrees is half of a 90 degree movement.

Polygon A'B'C'D' is a 180 degree counterclockwise rotation of polygon ABCD. True False

Explanation Remember the letters which label the diagram do not have to be rotated.

Seahorse 2 is a 90 degree counter- clockwise rotation of seahorse 1. True False

Explanation The rotation is 90 degrees clockwise. Or it is 270 degrees counterclockwise.

A(2,3), B(2,-1), C(-1,-1)

Graph triangle ABC under the following rotations:

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Answer