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31 March, 05:27

Which of the following could be the lengths of three sides of a triangle

A. 1,2,3

B. 3,3,7

C. 4,8,12

D. 5,7,9

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Answers (1)
  1. 31 March, 07:23
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    Answer: D. 5,7,9

    Step-by-step explanation:

    Rules is that:

    a+b>c

    a+c>b

    b+c>a

    let a = 5

    let b = 7

    let c = 9

    5+7>9

    5+9>7

    7+9>5

    Therefore, this satisfies the rules of a triangle
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