A cubic box with a side length of 30 cm needs to be wrapped with decorative paper made of square pieces, each with a side of 6 cm. What is the minimum number of such square pieces required to cover the entire surface of the box?
Show answer & explanation
Correct answer: C
Explanation
Side of the cube = 30 cm, Side of the small square = 6 cm
Total pieces = (Surface area of the cube) / (Area of one square)
Surface area of the cube = 6 × (30)² = 5400 cm²
Area of one square = 6 × 6 = 36 cm²
Number of pieces = 5400 / 36 = 150