Respuesta :

Answer:

The area of base of cereal box is 20 mm².

Step-by-step explanation:

The volume of a cereal box is 400 mm³. The height of bx is 20mm.

The volume of box is

[tex]V=\text{Area of base}\times height[/tex]

[tex]400=\text{Area of base}\times 20[/tex]

Divide both sides by 20.

[tex]20=\text{Area of base}[/tex]

Therefore the area of base of cereal box is 20 mm².

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