Write down the number of vertices of each of the following figures.
(i) Cuboid, (ii) Square pyramid, (iii) Tetrahedron, (iv) Triangular prism,

Answer

To find the number of vertices for each of the given three-dimensional figures, we will analyze each shape step by step.

### Step 1: Count the vertices of a Cuboid
- A cuboid has 8 corners.
- These corners are where the edges meet.
- Therefore, the number of vertices in a cuboid is **8**.

### Step 2: Count the vertices of a Square Pyramid
- A square pyramid has a square base and one apex (top point).
- The corners of the square base contribute 4 vertices, and the apex adds 1 more vertex.
- Therefore, the total number of vertices in a square pyramid is **5**.

### Step 3: Count the vertices of a Tetrahedron
- A tetrahedron is a three-dimensional shape with four triangular faces.
- It has 4 vertices, one at each corner of the shape.
- Therefore, the number of vertices in a tetrahedron is **4**.

### Step 4: Count the vertices of a Triangular Prism
- A triangular prism has two triangular bases and three rectangular faces.
- Each triangular base contributes 3 vertices, and since there are two bases, we have 3 + 3 = 6 vertices.
- Therefore, the total number of vertices in a triangular prism is **6**.

### Summary of Vertices
- Cuboid: 8 vertices
- Square Pyramid: 5 vertices
- Tetrahedron: 4 vertices
- Triangular Prism: 6 vertices