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Practice finding coordinates of vertices after rotation. Understand the concept of rotational symmetry and apply rotation rules with examples.
E N D
Do NowFind the coordinates of the vertices of the new image after using the given reflection rule.
D (2, 3) E (5, 4) F (4, 1)
12.6 Rotations & Symmetry Objective: rotate figures and identify rotational symmetry Homework: 12.6 Worksheet
Rotational Symmetry • An object has rotational symmetry if you can turn it less then 180 degrees and get the same image. Examples:
Example • Rotate the given figure 90 degrees.
Example • Rotate the given figure 180 degrees.
Example • Rotate the given figure 270 degrees.
Tell whether the transformation is a rotation of the origin. If it is, describe the rotation.