Feedback: Not quite! The surface area of a cube is 6 × (side length)². To find the side length: divide 150 cm² by 6 to get 25, then take the square root: $\sqrt{25}$ = 5 cm.
Feedback: Well done! The surface area of a cube is 6 × (side length)². To find the side length: divide 150 cm² by 6 to get 25, then take the square root: $\sqrt{25}$ = 5 cm.