The area of a square is 81m square.what is the perimeter of the square?how do you know

Question

The area of a square is 81m square.what is the perimeter of the square?how do you know

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Isabelle 4 days 2021-11-25T18:39:04+00:00 1 Answer 0 views 0

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    2021-11-25T18:41:03+00:00

    Answer:

    36m

    Step-by-step explanation:

    If the area of a square is 81 m

    A=81m

    but we know that A=l² so l=radA

    l=9m

    p=4l

    finally p=4•9=36m

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45:7+7-4:2-5:5*4+35:2 =? ( )