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28 December, 13:06

The perimeter of the rectangle ABCD is

74 units. Find the length of side AB if:

DC (top) = 4z-1

CB (right side) = 3z+3

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Answers (1)
  1. 28 December, 13:27
    0
    length=19

    Step-by-step explanation:

    top is length and right side is breadth.

    perimeter = 2 (l+b)

    74 = 2[ (4z-1) + (3z+3) ]

    74/2 = 4z-1+3z+3

    37 = 7z+2

    7z = 37-2

    7z = 35

    z = 35/7

    z = 5

    .: length = top = 4z - 1 = 4 (5) - 1

    = 20-1=19

    .: length = 19
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