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Instead of checking each rectangle individually, you can use the magic picture below. If you move the mouse around, the shape of the rectangle will change. The sides however always add up to 28. Can you find out which shape has the biggest area?
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Instead of checking each rectangle individually, you can use the magic picture below. If you move the mouse around, the shape of the rectangle will change. The sides however always add up to 28. Can you find out which shape has the biggest area?
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