a rectangular box, the length is 4 times the width and height is 5 times the width.
Determine the dimensions of the rectangular box if its volume is 160cm3.
Write down the answer in the following order: length, width, height.
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Answer:
GIVEN,
l = 4w
h = 5w
v = 160cm³
v = lwh = 4w × 5w × w = 20w³
v = 160 = 20w³
w³ = 8
w = ∛8
w = 2cm
∴ height = 5w = 10cm
length = 4w = 8cm
width = 2cm
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