infinite angles of rotational symmetry... (:
~kitty <3
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A decagon has 10 sides, so it also has 10 angles. Each angle of a decagon is 36 degrees (360 degrees divided by 10). Therefore, a decagon has 10 angles of rotation symmetry.
A general parallelogram has rotational symmetry of order two.
It has 8 rotational symmetry.
A scalene triangle has one order of rotational symmetry.