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Polygons and Symmetry

Related Topics:
Common Core (Geometry)
Common Core for Mathematics

Examples, solutions, videos, and lessons to help High School students learn when given a rectangle, parallelogram, trapezoid, or regular polygon, describe the rotations and reflections that carry it onto itself.

Common Core: HSG-CO.A.3
The following diagrams show the rotational symmetry and reflectional symmetry of rectangle, parallelogram, trapezoid, or regular polygon. Scroll down the page for more examples and solutions of rotational and reflectional symmetry.

Symmetry Shapes

Polygons and Symmetry
Determine the measure of interior and exterior angles of a regular polygon.
Determine whether a figure has line symmetry or rotational symmetry. Reflection Symmetry and Rotational Symmetry
A description of reflection and rotational symmetry, including point symmetry.
Isosceles Triangle, Rectangle, parallelogram.

Lines and Types of Symmetry in Geometric Figures
This video discusses lines of symmetry, degrees of rotational symmetry, symmetry about an axis, and symmetry about a plane.
Identify Line Symmetry and Rotational Symmetry Identify Line Symmetry and Rotational Symmetry Polygons and Symmetry

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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