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Dulnith S.

asked • 09/29/20

Question is below

A grid contains one large square and four small squares within it.There is one circle on the corner of each smaller square.

Show that, up to rotation and reflection, there is only one way to fill the

empty circles with the numbers 1 to 9 so that the sums of the numbers at

the vertices of all five squares are the same.

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