The length of a rectangle is three times its width and perimeter56m.The length is * ​

Question

The length of a rectangle is three times its width and perimeter56m.The length is *

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Claire 4 weeks 2021-11-02T07:16:11+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-02T07:17:21+00:00

    Answer:

    21m

    Step-by-step explanation:

    The perimeter of the rectangle is =2(l+b)

    The length = 3*width

    Let the width be x.

    Therefore; Length = 3x

    Perimeter=56

    => 2(l+b) =56

    => l+b=28

    =>x+3x=28

    =>4x=28

    therefore x = 7

    ie; length= 3*7 = 21.

    0
    2021-11-02T07:17:39+00:00

    Answer:

    21 m

    Step-by-step explanation:

    perimeter of a rectangle=2[l+b] or 2*l+2*b

    let the width [breadth] be = x

    so the length will =3 times width  =3*x = 3x

    perimeter = 56m

    according to the question = 2[3x+x] = 56m

    =2[4x]=8x

    8x = 56

    56/8 = x

    x=7

    width=7m

    length=3*7=21 m

    [this is the answer if this was helpful please mark me as the brilliant]

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