Mensurationmedium · Past Paper
The diagonal of a face of a cube is 4*sqrt(2) cm. What is the total surface area of the cube?
A64 cm²
B96 cm²
C16 cm²
D32 cm²
✓ Correct Answer: B — 96 cm²
Diagonal of face = sqrt(2)l = 4*sqrt(2) => l = 4. TSA = 6l² = 6 * 16 = 96 cm².
Share this question
More from Mensuration
- A rectangular reservoir is 6m long and 3m wide. At what speed per hour must water flow into it through a square pipe of 20cm side so that the water level rises by 2m in 5 hours?
- Find the slant height of a cone if the curved surface area is 188.4 sq. cm and the radius is 6 cm. (Use π = 3.14)
- Calculate the surface area of a sphere having a diameter of 14 cm.
- A water tank is in the shape of a cube of side 2 m. What is its capacity in liters?
- A cylinder has a radius of 10 cm and height of 20 cm. If the height is doubled and radius is halved, the new CSA will be: