Definition of Cuboid
- Cuboid is a polyhedron with six rectangular plane faces.
More about Cuboid
- There are 12 edges and 8 vertices in a cuboid.
- Cuboid is also called as right rectangular prism or rectangular parallelepiped box.
- If all the edges of a cuboid are equal then it forms a cube.
- In a cuboid opposite faces are equal and parallel and all angles are right angles.
- Formulas for the above rectangular box:
Volume = lwh
Lateral Surface Area = 2lh + 2wh
Surface Area = 2lw + 2lh + 2wh
Example of Cuboid
- The above figure is a rectangular prism having six rectangular faces with the opposite faces being parallel.
Solved Example on Cuboid
Which net can be folded to form a cuboid?
A. Figure 1
B. Figure 2
C. Figure 3
D. Figure 4
Correct Answer: C
Step 1: A cuboid is a polyhedron with six rectangular plane faces.
Step 2: Observe the nets given in the four figures. [Cut a paper into the shape of net and fold it.]
Step 3: We observe that a cuboid is formed only from the net in Figure 3.
Step 4: The net in the Figure 3 can be folded to form a cuboid.
Related Terms for Cuboid
- Rectangular prism
- Right Angle