- 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. Probability
Study Guide
Probability 
Worksheet/Answer key
Probability Worksheet/Answer key
Probability Worksheet/Answer key
Probability Worksheet/Answer key
Chance Worksheet/Answer key
Chance Worksheet/Answer key
Probability Worksheet/Answer key
Chance Worksheet/Answer key
Chance
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyThe resources above cover the following skills:
Data Analysis and Probability (NCTM)
Develop and evaluate inferences and predictions that are based on data.
Discuss events related to students' experiences as likely or unlikely.