Question

Lenny has a model train layout on a large, rectangular board. The length, l, of the board is 3 times the width, w. Which equation can be used to find P, the perimeter of the board?

Answer 1

8w

Explanation:

Given that:

Length = l

Width = w

l = 3w

Perimeter of rectangular board :

Perimeter of a rectangle = 2(l + w)

Perimeter = 2(3w + w)

Perimeter = 2(4w)

Perimeter of rectangular board = 8w