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Rotation
Move the vertices of the yellow rectangle and the two centre points.

Which shapes show a quarter turn of the yellow shape?
Red & blue
Orange & blue
Red & green
Orange & green

Result:
Please enable Java for an interactive construction (with Cinderella).
Which shapes show a half turn?
a0 a1 a2 a3 a4
b0 b1 b2 b3 b4
c0 c1 c2 c3 you are here
d0 d1 d2 d3 d4
e0 e1 e2 e3 e4
f0 f1 f2 f3 f4
g0 g1 g2 g3 g4
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