If two sides of a triangle are 18 cm and 10cm and its perimeter is 42 cm , then find its third side:​

Question

If two sides of a triangle are 18 cm and 10cm and its perimeter is 42 cm , then find its third side:​

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Abigail 2 months 2021-11-28T13:12:55+00:00 2 Answers 0 views 0

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    0
    2021-11-28T13:14:09+00:00

    Answer:

    14 cm

    Step-by-step explanation:

    perimeter of triangle = Sum of all three sides

    let the 3rd side be x

    42= 18+10+x

    42=28+x

    42-28=x

    14=x

    Therefore, the 3rd side is 14 cm.

    0
    2021-11-28T13:14:48+00:00

    Answer:

    14 is the answer of 3rd side

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