The length and the width of a rectangle are consecutive odd integers, and the length is x cm. Find the perimeter of the rectangle.

Question

show all procedure please

Answer 1

x + x+2 = half the perimeter = 2x +2, x=length, x+2 = width

perimeter = 2(L+W) = 2(2x+2) = 4x + 4

Or if length > width

then x+x-2 = half the perimeter = 2x-2

perimeter = 2(2x-2) = 4x-4

Usually length>width so I'd go with 4x-4 as the perimeter, but it could be either