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24 February, 20:43

Compare the given dimensions of four triangles. Which triangle is possible to construct? side lengths of 5 ft, 12 ft, and 13 ft side lengths of 2 ft, 11 ft, and 15 ft side lengths of 3 ft, 7 ft, and 11 ft side lengths of 4 ft, 8 ft, and 15 ft

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  1. 24 February, 22:29
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    (5,12,13) is a right triangle and can be constructed.

    All the others do not satisfy the triangle inequality, i. e. the sum of two short sides must exceed the long side in order for the triangle to be constructed.

    Examples:

    2+11<15, so no

    3+7<11, so no

    4+8<15, so no

    but 5+12>13 so yes, it can be constructed.
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