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Mathematics 10 Online
sophiereed:

An irregular parallelogram rotates 360° about the midpoint of its diagonal. How many times does the image of the parallelogram coincide with its preimage during the rotation?

jhonyy9:

little help : check this image please |dw:1600357770294:dw| so try to see than you rotate this parallelogram about point O ,how many times does the image coincide with its preimage ? hope helped solve it easy correct

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