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A square has rotational symmetry because it can be rotated 180 degrees so that its image matches the original. Your friend says the angle of rotation is 180 divided by 4 = 45 degrees. What is wrong with this statement?
11 years ago

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PsyDAG
Why is the friend dividing by 4? To match the original, each rotation must be a minimum of 90º.
11 years ago

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