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5. Debbie has an ample supply of square ceramic tiles with the patterns shown below. She intends to create a horizontal, rectangular wall decoration by cementing three of the squares to the wall in a row. How many different designs can she create in this way that have at least one line of symmetry?https://gaithersburg.aopsacademy.org/class/fetch/6721/9131/41e3668c9fe03dcd

 Aug 19, 2020
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There are 72 designs that work.

 Aug 28, 2020

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