Fill in the blanks,
(i) A cube has…………. Vertices………….. Edges and …………… faces.
(ii) The point at which three faces of a figure meet is known as its……….
(iii) A cuboid is also known as a rectangular………….
(iv) A triangular pyramid is called as ...................

Answer

Let's solve the question step by step.

### Solution:

(i) A cube has **8** vertices, **12** edges, and **6** faces.

- **Explanation**:
- A cube consists of 8 corners (vertices), where each corner is a point where edges meet.
- It has 12 edges, which are the line segments connecting the vertices.
- A cube has 6 square faces, each face being one of the sides of the cube.

(ii) The point at which three faces of a figure meet is known as its **vertex**.

- **Explanation**:
- In three-dimensional geometry, a vertex is the point where three edges meet, and it is also where three faces intersect.

(iii) A cuboid is also known as a rectangular **prism**.

- **Explanation**:
- A cuboid is a three-dimensional shape with six rectangular faces, and it is often referred to as a rectangular prism.

(iv) A triangular pyramid is called as **tetrahedron**.

- **Explanation**:
- A tetrahedron is a type of polyhedron that has four triangular faces, and it is the simplest form of a three-dimensional shape.

### Final Answers:
(i) A cube has **8** vertices, **12** edges, and **6** faces.
(ii) The point at which three faces of a figure meet is known as its **vertex**.
(iii) A cuboid is also known as a rectangular **prism**.
(iv) A triangular pyramid is called as **tetrahedron**.