- Triangle: A polygon with 3 sides and 3 vertices.
- Quadrilateral: A polygon with 4 sides and 4 vertices. Examples include squares, rectangles, parallelograms, and trapezoids.
- Pentagon: A polygon with 5 sides and 5 vertices.
- Hexagon: A polygon with 6 sides and 6 vertices.
- Heptagon (or Septagon): A polygon with 7 sides and 7 vertices.
- Octagon: A polygon with 8 sides and 8 vertices.
[Polygon] Related Worksheets and Study Guides:
.◂Math Worksheets and Study Guides Second Grade. Fractions
Study Guide
Fractions 
Worksheet/Answer key
Fractions Worksheet/Answer key
Fractions Worksheet/Answer key
Fractions Worksheet/Answer key
Fractions Worksheet/Answer key
Fractions and Decimals Worksheet/Answer key
Fractions and Decimals Worksheet/Answer key
Fractions and Decimals Vocabulary/Answer key
Fractions Vocabulary/Answer key
Fractions
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyCreate And Print more Fractions worksheets with Comparing Fractions, Equivalent Fractions, and Simplifying Fractions
The resources above cover the following skills:
Number and Operations (NCTM)
Understand numbers, ways of representing numbers, relationships among numbers, and number systems.
Understand and represent commonly used fractions, such as 1/4, 1/3, and 1/2.