The length of a rectangle is 3 cm more than its breadth. If the perimeter of the rectangle is 46 cm, find the length and the breadth.

Question

The length of a rectangle is 3 cm more than its breadth. If the perimeter of the
rectangle is 46 cm, find the length and the breadth.

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Mít Mít 3 years 2021-08-14T03:54:32+00:00 1 Answers 17 views 0

Answers ( )

  1. Adela
    0
    2021-08-14T03:55:45+00:00
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    Answer:

    breadth = 10 cm

    length = 13 cm

    Step-by-step explanation:

    so,

    perimeter = 46cm

    2(l+b) = 46cm

    or, 2(3+b+b) = 46cm ( because l = 3+b)

    or, 2(3+2b) = 46cm

    or, 6 + 4b = 46cm

    or, 4b = 46cm – 6

    or, 4b = 40cm

    or, b = 40/4 cm

    so, b = 10 cm

    now,

    l = 3cm + b

    l = 3 cm + 10cm

    = 13cm

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