I’ll make u the brainliest if right

answer:

0.05 m³

step-by-step explanation:

given the scale ratio = a : b, then the

volume ratio = a³ : b³

here scale ratio = 1 : 20, thus

volume ratio = 1³ : 20³ = 1 : 8000

let x be the volume of the model then using proportion

= ( cross- multiply )

8000x = 400 ( divide both sides by 8000 )

x = 0.05

thus volume of model is 0.05 m³

4.

step-by-step explanation:

it have the same area.brainliest

part a: 1.08

part b: 27.59