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Suppose ABCD is a quadrilateral for which there is exactly one rotation, through an angle larger than 0 degrees and less than 360 degrees, which maps it to itself. Further, no reflections map ABCD to itself. What shape is ABCD? Aligns with G-CO.A.3.
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describe rotations and reflections that carry a shape onto itself, cc by-nc-sa 4.0, ccss.math, creative commons attribution-noncommercial-sharealike 4.0, g-co.a.3, hsg-co.a.3, illustrative mathematics, illustrative mathematics: g-co symmetries of a quadrilateral i, illustrative mathematics: g-co symmetries of a quadrilateral i hsg-co.a.3, symmetries of a quadrilateral i, rotation, rotation symmetry
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