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Counting sides and vertices on a 2D shape

This math skill teaches how to count the sides and vertices of a 2D shape. A side is defined as the line segment between two vertices, and a vertex is the corner where two sides meet.

Learn counting sides and vertices on a 2D shape

Teaching Transcript

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Let's count the sides and vertices on this shape

A side is the line that connects two corners of a shape

And a vertex is the corner. If there is more than one, we call them vertices

Counting the sides, we have 5 sides

And counting the corners, we have 5 vertices

Skill Practice

Counting sides and vertices on a 2D shape

Test your understanding of counting sides and vertices on a 2D shape by practicing it! Work through the below exercises to use it in practice.