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Grade 5 Math · World 9: Polygon Palace · Level 85
Polygons by Sides
Name triangles, quadrilaterals, pentagons, hexagons, and octagons.
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 85
- Welcome to Polygon Palace! A polygon is a closed flat shape with straight sides. Its name tells how many sides it has.
- Tri means 3, quad means 4, penta means 5, hexa means 6, and octa means 8.
- A polygon doesn't need equal sides. This house shape has 5 sides, so it's a pentagon too.
Georgia's K-12 Mathematics Standards:
- 5.GSR.8.1 — Classify, compare, and contrast polygons based on properties.