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18 August, 15:42

Find the perimeter of the given triangle kjn if kjn congruent lmn, kj = 17.5 lm=10 mn=8 and nl=6

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  1. 18 August, 19:24
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    I supposed you mean similar and not congruent.

    If kjn ≡ lmn, the kj would be equal to lm which in your question, is not

    Assumed kjn is similar to lmn

    scale = 17.5 : 10 = 1.75

    Therefore,

    kj = 17.5 cm (given)

    jn = 8 x 1.75 = 14 cm

    kn = 6 x 1.75 = 10.5 cm

    Perimeter = 17.5 + 14 + 10.5 = 42 cm

    Answer: 42 cm
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