Classify polygons in 2D shapes: Example question
31 October 2026
Polygons are flat shapes with straight sides. To classify a polygon, look at how many sides and corners it has. This helps you know its name, like triangle, quadrilateral or pentagon.
Example question
Classify the polygon with 5 sides and 5 vertices.
Step 1: Count the sides. There are 5 sides.
Step 2: Count the vertices (corners). There are 5 vertices.
Step 3: Since it has 5 sides and 5 vertices, it is called a pentagon.
Answer: The polygon is a pentagon.
After working through this example, your child can spot and name polygons by counting sides and vertices. The same type of question is ready to practise, so your child can build confidence in classifying 2D shapes.
