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Rotation
What is the order of rotational symmetry of the green star?
2 3 4
5 6 7

Result:
What is the order of rotational symmetry of the parallelogram? 		Please enable Java for an interactive construction (with Cinderella).
a0 a1 a2 a3 a4
b0 b1 you are here b3 b4
c0 c1 c2 c3 c4
d0 d1 d2 d3 d4
e0 e1 e2 e3 e4
f0 f1 f2 f3 f4
g0 g1 g2 g3 g4
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