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

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