Respuesta :

MathPhys

Answer:

16 cm

Step-by-step explanation:

Area of a rectangle is A = LW, where L is the length and W is the width.

If L = 4W, and A = 1024, then:

A = LW

1024 = (4W) W

1024 = 4W²

256 = W²

W = 16

The width is 16 cm.