http://www.ck12.org Chapter 12. Rigid Transformations
Guided Practice
Find the angle of rotation and the number of times each figure can rotate.
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Answers:
- The parallelogram can be rotated twice. The angle of rotation is 180◦.
- The hexagon can be rotated six times. The angle of rotation is 60◦.
- This figure can be rotated four times. The angle of rotation is 90◦.
Explore More
- If a figure has 3 lines of rotational symmetry, it can be rotated ___ times.
- If a figure can be rotated 6 times, it has ___ lines of rotational symmetry.
- If a figure can be rotatedntimes, it has ___ lines of rotational symmetry.
- To find the angle of rotation, divide 360◦by the total number of _____.
- Every square has an angle of rotation of _____.
Determine whether each statement is true or false.
- Every parallelogram has rotational symmetry.
- Every figure that has line symmetry also has rotational symmetry.
Determine whether the words below have rotation symmetry.
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