Question

A large number of open cardboard.boxes are to be made and each box must have

square base and a capacity of 4000 cm^2. Find the dimensions of the box which
contains the minimum area of cardboard.​

Answer 1

5

Explanation:

Answer 2

open boxes => 5 areas

5L² = 4000 cm²

L² = 4000cm²/5

L² = 800cm²

L = √800

L = √2×400

L = √2×20²

L = 20√2 cm