How to Identify Sides and Vertices in 2D Shapes

In the last lesson, you learned about two-dimensional shapes.

Every 2D shape has two important parts: sides and vertices.

In this lesson, let's look at the sides and vertices of some common 2D shapes. 😎

Sides and Vertices in 2D Shapes

• The lines that form a 2D shape are called its sides.
  

• A corner at which two sides of a 2D shape meet is called a vertex. Two or more corners are called vertices (not vertexes!).
  

Sides and Vertices of Common 2D Shapes

Can you now identify how many sides and vertices each 2D shape has? 🤔

Great job! 👏

Now, try the practice. 💪 You'll learn more and remember for longer.