Asked by Makayla
which shape does not have rotational symmetry
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GPT-5 mini
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Rotational symmetry means a shape can be rotated (less than a full 360°) and still look exactly the same.
A simple example of a shape that does not have rotational symmetry (other than the trivial full turn) is a scalene triangle — all three sides (and angles) are different, so any rotation other than 360° moves it to a different position. More generally, any irregular/asymmetric polygon or figure that only matches itself after a 360° rotation has no nontrivial rotational symmetry (sometimes called order 1).
A simple example of a shape that does not have rotational symmetry (other than the trivial full turn) is a scalene triangle — all three sides (and angles) are different, so any rotation other than 360° moves it to a different position. More generally, any irregular/asymmetric polygon or figure that only matches itself after a 360° rotation has no nontrivial rotational symmetry (sometimes called order 1).
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