Mensurationhard · Past Paper
A cube of side 6 cm is melted to form smaller cubes of side 2 cm. What is the total surface area of all smaller cubes together?
A216 cm²
B648 cm²
C432 cm²
D1296 cm²
✓ Correct Answer: B — 648 cm²
No. of cubes = 6³/2³ = 216/8 = 27. Area of one small cube = 6 * 2² = 24. Total area = 27 * 24 = 648 cm².
Share this question
More from Mensuration
- Calculate the area of the ring between two concentric circles of radii 10 cm and 7 cm.
- Area of a rectangle with length 'x' and breadth 'y' is:
- Find the volume of a right circular cone with radius 3.5 cm and height 12 cm.
- The area of an equilateral triangle is A. If the side is doubled, the new area is:
- The ratio of the total surface area of a sphere and a hemisphere of the same radius is: