Compare vertices, edges and faces
Key notes :-
🔺 1. What is a Vertex?
- A vertex is a corner.
- It’s where two or more edges meet.
- Example: A cube has 8 vertices.
📏 2. What is an Edge?
- An edge is a line between two corners.
- It is the side of a 3D shape.
- Example: A cube has 12 edges.
🧱 3. What is a Face?
- A face is a flat surface on a shape.
- You can see and touch it.
- Example: A cube has 6 faces.
🧊 4. Example Comparison of 3D Shapes
| Shape | Vertices (Corners) | Edges (Sides) | Faces (Surfaces) |
|---|---|---|---|
| Cube | 8 | 12 | 6 |
| Sphere | 0 | 0 | 1 |
| Cylinder | 0 | 2 | 3 |
| Cone | 1 | 1 | 2 |
| Rectangular Prism | 8 | 12 | 6 |
🧠 5. Remember
- More faces means more sides to touch.
- More vertices means more corners.
- More edges means more lines to trace.
Learn with an example
✒️Which figure has more edges?
Edges are the straight or curved lines where two surfaces meet. For example, this is an edge:
Count the edges of each figure.
The rectangular prism has more edges.
✒️Which figure has fewer faces?
Faces are flat surfaces. For example, this is a face:
Count the faces of each figure.
The cone has fewer faces.
✒️Which figure has fewer edges?
Edges are the straight or curved lines where two surfaces meet. For example, this is an edge:
Count the edges of each figure.
The cylinder has fewer edges.
Let’s practice!
