A gift box is shaped like a cube with side 9 cm. How much paper is needed to cover all 6 faces?
Note
A cube has 6 equal square faces. Each face is 9 × 9 = 81 cm², so all 6 faces cover 486 cm².
A gift box is shaped like a cube with side 9 cm. How much paper is needed to cover all 6 faces?
A cube has 6 equal square faces. Each face is 9 × 9 = 81 cm², so all 6 faces cover 486 cm².