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Mathematics, 18.05.2021 14:00 toomuch94

Rachael has 20 rods whose lengths, in centimetres, are 1, 2, 3, , 20. any 2 rods can be connected at their ends. Racheal selects three rods to make a triangle, then three other rods to make a second triangle. Only one of racheals rods cannot be the side of a triangle. Determine which one

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