- A polygon is a closed shape made of straight line segments.
- The circle is not a polygon because it has a curved edge.
- The cloud-like shape is not a polygon because it has curved edges.
- The "N" shape is a polygon because it is closed and made of straight lines.
- The triangle is a polygon because it is closed and made of three straight sides.
- The pentagon is a polygon because it is closed and made of five straight sides.
- The semi-circle is not a polygon because it has a curved edge.
- The trapezoid is a polygon because it is closed and made of four straight sides.
- The teardrop shape is not a polygon because it has a curved edge.
- The square is a polygon because it is closed and made of four straight sides.
Parent Tip: Review the logic above to help your child master the concept of polygon or not worksheet.