Shapes are made of lines called sides.
A vertex is the place where two sides meet, like a corner.
Tip: When there is more than one vertex, we say "vertices."
Different shapes have different numbers of sides and vertices!
A triangle has 3 sides:
How many vertices does a triangle have?
Triangles have 3 vertices.
A square has 4 sides and 4 vertices.
A rectangle also has 4 sides and 4 vertices.
You can count them to check:
All 4-sided shapes (Quadrilaterals) have 4 vertices.
For 2D shapes, the number of sides always equals the number of vertices.
Great job learning about vertices and shapes.
Now, try the practice. It'll help you remember what you learned for longer.