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Back to Describe transformation effects — Problem 5 · Task Set 3

Exercises: Symmetries of Geometric Figures

Work through each section in order. Use precise transformation language in your explanations — state angles of rotation and lines of reflection exactly.

Grade 9·21 problems·~30 min·Common Core Math - HS Geometry·standard·hsg-co-a-3
Work through problems with immediate feedback
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Fluency Practice

Identify the rotational and reflective symmetries of each figure.

A non-rectangular parallelogram with labeled vertices and no lines of symmetry shown.
1.

A parallelogram has vertices at (0,0)(0,0), (4,0)(4,0), (5,2)(5,2), and (1,2)(1,2). This is a non-rectangular parallelogram (adjacent sides have different lengths and angles are not right angles). How many lines of reflective symmetry does it have?