A brick is an example of a cuboid.

Explanation:
A brick is a rectangular-shaped object with six faces, where each face is a rectangle. A cuboid is a three-dimensional shape with six rectangular faces, where the length, width, and height can have different measurements.

- Definition of a Cuboid:
A cuboid is a three-dimensional shape that has six rectangular faces, twelve edges, and eight vertices. The opposite faces of a cuboid are congruent and parallel to each other. The length, width, and height of a cuboid can have different measurements.

- Characteristics of a Cuboid:
1. Faces: A cuboid has six faces, and each face is a rectangle.
2. Edges: A cuboid has twelve edges.
3. Vertices: A cuboid has eight vertices.
4. Opposite Faces: The opposite faces of a cuboid are congruent and parallel to each other.

- How a Brick Fits the Definition of a Cuboid:
A brick is a perfect example of a cuboid because it has all the characteristics mentioned above:
1. Faces: A brick has six flat rectangular faces.
2. Edges: A brick has twelve edges that connect the faces.
3. Vertices: A brick has eight vertices where the edges meet.
4. Opposite Faces: The opposite faces of a brick are congruent and parallel to each other.

- Visual Representation:
Imagine a rectangular-shaped brick. Each of its faces is a rectangle, and the length, width, and height can all have different measurements. This solid shape perfectly fits the definition of a cuboid.

In conclusion, a brick is an example of a cuboid because it is a three-dimensional shape with six rectangular faces, twelve edges, and eight vertices. The characteristics of a cuboid align with the properties of a brick, making it a suitable example of a cuboid.

Cuboid