Question

The rectangles on a quilt are 4 in. wide and 5 in. long. The perimeter of each rectangle is made by a pattern of green thread. If there are 40 rectangles in the quilt, how much green thread is needed?

Answer 1

Are the rectangles all joining each other? On how many sides? Or are all rectangles separate?

Answer 2

It doesn't say.

Answer 3

Ok. Let's assume that you need the green thread around each of the rectangles.

P = 2L + 2W
P = 2(4) + 2(5)
P = 18 cm for each rectangle

18 * 40 = ?