GCSE Maths Practice: surface-area

Question 8 of 10

This question introduces calculating the surface area of a cube using the side length.

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\( \begin{array}{l}\text{Find the surface area of a cube with side length } 3\,\text{cm}.\end{array} \)

Choose one option:

Calculate one face first, then multiply by 6. Check units (cm²).

To calculate a cube's surface area, multiply the area of one square face by 6. For a cube with side length 3 cm, area of one face = 3 × 3 = 9 cm², total surface area = 9 × 6 = 54 cm². Understanding this concept is key for 3D shapes. Practice with cubes of different sizes to master the calculation and relate it to real-world objects like dice or boxes.