**(a) The volume of a cuboid is 1440 cm**^{3}. Its height is 10 cm and the cross-section is a square. Find the side of the square.

**(b) The perimeter of one face of a cube is 20 cm. Find the surface area and the volume of the cube.**

^{3}. Its height is 10 cm and the cross-section is a square. Find the side of the square.

**Solution:**

**More Solutions:**

- How many square sheets of paper of side 40 cm.
- Find the perimeter of the cross-section.
- The volume of a cube is 729 cm3.
- The length of the longest rod.
- Calculate its capacity and the area.
- How many 4 cm cubes could be put into the box?
- A certain quantity of wood costs Rs. 250 per m3.
- Find the rise in the water level in centimeters.
- Calculate the volume of the cube.
- Find the surface area of the resulting cuboid.