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# Help Zone

### Student Question

Grade 6 • 9mo.

I can't really tell if its perimeter or area when it comes to multiplication or addition. I don't really understand the surface either and I need some help right now.

Je ne peut pas toujours dire quand c'est le perimetre ou l'aire, quand il y a la multiplication ou l'addition. Je ne comprends pas la surface aussi et j'ai besoin de l'aide maintenant.

Mathematics

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## Explanations (1)

• Explanation from Alloprof

Explanation from Alloprof

This Explanation was submitted by a member of the Alloprof team.

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Team Alloprof • 9mo.

Hi !

It depends on the formula used in the calculation. The perimeter is calculated by additioning the measurement of the sides of the figure and the formula for the area is often a multiplication.

The surface is synonymous with the area in geometry.

If you have any other questions, feel free to ask them !