Problema Solution
The perimeter of a rectangle is 64cm. The length is 4cm less than twice the width. Find the length &width.
Answer provided by our tutors
let
l = the length of the rectangle
w = the width of the rectangle
the perimeter of a rectangle is 64 cm
2(l + w) = 64 divide both sides by 2
l + w = 32
the length is 4 cm less than twice the width
l = 2w - 4
by solving the system of equations
l + w = 32
l = 2w - 4
we find
l = 20 cm
w = 12 cm
click here to see the step by step solution of the system of equations
the length is 20 cm and the width is 12 cm.