Angle of Rotation
Definition of Angle of Rotation
Angle of rotation is the measure of degrees that a figure is rotated about a fixed point.
More about Angle of Rotation

A rotation is a transformation that turns a figure about a fixed point called the center of rotation.
Examples of Angle of Rotation
 In moving from point A to point B (clockwise), the angle of rotation of the Ferris wheel is 45�.
Video Examples: Rotational Symmetry, Order and angle of Rotation
Solved Example Clockple on Angle of Rotation
Ques: Find the angle of rotation.
Choices:
A. 120�B. 60�
C. 45�
D. 90�
Correct Answer: B
Solution:

Step 1: A rotation is a transformation that turns a figure about a fixed point called the center of rotation.
Step 2: Use a protractor to measure the angle of rotation.
Step 3: The angle of rotation is observed as 60�.
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