the perimeter of a rectangle is 52cm .if its width is 2cm more than one third of its length.find the dimensions of the rectangle.plz explain with a short and a easy MEthod
primeter = 52cm
breadth = l / 3 + 2
length = l
now, perimeter = 2(l+b)
52cm = 2( l + l + 6)
3
52cm / 2 = 4l + 6
3
26 x 3 = 4l + 6
78 - 6 = 4l
72 / 4 = l
18 = l
so, length = 18 cm
breadth = 18 / 3 +2 = 6 + 2 = 8cm
hope it helps.