Grade 5 — Surface Area of Cubes

Interactive practice • challenge problems • speed quiz • 3D viewer • CSV download

Intro & Concept

Surface area is the total area of all the faces (or sides) of a 3D object. Think of it like the amount of wrapping paper you would need to cover a gift box. A cube has 6 identical square faces. 🎁

To find the surface area of a cube, we follow these steps:

  1. Find the area of one face: Area = side × side.
  2. Since a cube has 6 identical faces, multiply the area of one face by 6.

The formula is: Surface Area = 6 × (side × side) or $SA = 6s^2$

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Interactive 3D Viewer

Change the side length below to see how the surface area changes in 3D!

Surface Area: 54 square units

Interactive Practice

Calculate the surface area of these cubes. Don't forget the units! 📏

1) Side = 2cm
2) Side = 5in
3) Side = 10m
4) Side = 1ft

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⚡ Speed Quiz

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