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19 December, 18:18

Is 20, 10, 9 a triangle

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  1. 19 December, 18:32
    0
    No

    Step-by-step explanation:

    a = 20

    b = 10

    c = 9

    b+c ≤ a

    10 + 9 ≤ 20

    29 ≤ 20
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