Answer: width = 4 ft, length = 8 ft, height = 4 ft
Step-by-step explanation:
width (w): w
length (L): 2w
height (h): w
Volume (V) = w * L * h
128 = w(2w)(w)
128 = 2w³
64 = w³
∛64 = ∛w³
4 = w
width (w): w = 4
length (L): 2w = 2(4) = 8
height (h): w = 4