If the volume of a cube is 343 m³, find the area of one side (face).

Correct answer: 49 m². The side is ∛343 = 7 m, so the area of one face = 7² = 49 m².

Background: Volume of a cube = side³.

• 43 m²: 43 m² is not 7².
• 51 m²: 51 m² is not 7².
• 57 m²: 57 m² is not 7².

Did you know? 7 × 7 × 7 = 343.

Memory trick: Cube root, then square.