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As shown in the figure, there is rectangular paper ABCD, ab = 6, BC = 8, fold the paper along EF, make point B and point d coincide, and calculate the length of crease EF
As shown in the figure, there is rectangular paper ABCD, ab = 6, BC = 8, fold the paper along EF, make point B and point d coincide, and calculate the length of crease EF
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