Yes, a 2D shape does have vertices.
What is a Vertex?
A vertex (plural: vertices) is a point where two or more lines or edges meet. It's essentially a corner.
Vertices in 2D Shapes
Since 2D shapes are formed by lines or curves that enclose an area on a flat plane, those lines must meet to form a closed shape. The points where these lines or edges meet are the vertices.
Examples
Here are a few examples of 2D shapes and their vertices:
- Triangle: Has 3 vertices.
- Square: Has 4 vertices.
- Pentagon: Has 5 vertices.
- Circle: Does not have vertices (it is formed by a continuous curve with no straight edges).
Importance of Vertices
The number of sides and vertices are key properties used to classify and describe 2D shapes.