Unit Plan
Cuemath

Cuemath: Regular Polygon

For Students 9th - 10th Standards
Introduces the concept of regular polygons along with regular polygon examples, not regular polygons, irregular polygons, and area of a regular polygon. Check-out the solved examples for better understanding and try your hand at solving...
Unit Plan
Math Is Fun

Math Is Fun: Properties of Regular Polygons

For Students 3rd - 8th
Find a definition of regular polygon, and learn how to calculate the internal angle, external angle, and number of diagonals of a regular polygon. Also, learn how to find the area of regular polygons.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Regular and Irregular Polygons

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Identify regular polygons and their characteristics
Activity
Texas Instruments

Texas Instruments: Discovering Geometry: Drawing Regular Polygons

For Teachers 9th - 10th Standards
Students will explore the central angles of a regular polygon.
Interactive
Mangahigh

Mangahigh: Shape: Recognize Regular Polygons

For Students 9th - 10th Standards
Test your knowledge of regular polygons,
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Regular and Irregular Polygons

For Students 6th - 7th
[Free Registration/Login may be required to access all resource tools.] Understand the difference between regular and irregular polygons.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of Regular Polygons

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to calculate the area and perimeter of regular polygons. Students examine guided notes, review guided practice, watch instructional...
eBook
CK-12 Foundation

Ck 12: Interactive Geometry: 5.4 Constructions of Regular Polygons

For Students 9th - 10th Standards
Learn how to construct regular polygons.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Interior Angles in Convex Polygons

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to calculate the sum of the interior angles of a polygon and the measure of one interior angle of a regular polygon.
Unit Plan
Analyze Math

Analyze Math: Regular Polygons

For Students 9th - 10th Standards
The interactive tutorial examines the properties and formulas of regular polygons, inscribed circles, and circumscribed circles.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Polygons: Interior and Exterior Angles

For Students 9th - 10th
A great resource where you can learn how to calculate the measures of the interior and exterior angles of any regular polygon with these tutorials. There are several practice pages for someone to try. The teacher resource page includes...
Unit Plan
CK-12 Foundation

Ck 12: Regular and Irregular Polygons

For Students 9th - 10th
[Free Registration/Login Required] Students explore the concept of regular and irregular polygons by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Polygon Classification

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Identifying polygons, their diagonals and their angles
Handout
Math Is Fun

Math Is Fun: Regular 2 D Shapes

For Students 3rd - 8th Standards
This tutorial provides illustrations for regular 2-D shapes as well as a definition for polygons and for regular polygons.
Interactive
Calculator Soup

Calculator Soup: Regular Polygon Calculator

For Students 9th - 10th Standards
Use this calculator to calculate properties of a regular polygon. Enter any 1 variable plus the number of sides or the polygon name. Calculates side length, inradius, circumradius, area, and perimeter.
Handout
Geometry Help

Geometry Help: Polygons

For Students 9th - 10th Standards
Explains the basic concept of polygons with examples.
Lesson Plan
PBS

Pbs Mathline: Mirror, Mirror Lesson Plan [Pdf]

For Teachers 3rd - 8th
Determine which regular polygons tessellate by using mirrors. Printable lesson plan.
Activity
Analyze Math

Analyze Math: Polygons Problems

For Students 9th - 10th Standards
Here are four problems about the area of a regular polygon. Start by finding the area of a hexagon inscribed in a circle of radius 10, and end by proving that as the number of sides of the polygon increases, the area of the polygon...
Activity
Analyze Math

Analyze Math: Rotation Symmetry of Regular Polygons

For Students 9th - 10th Standards
An applet is used to investigate the rotation symmetry of regular polygons.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Exterior Angles in Convex Polygons

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to calculate exterior angles of regular polygons. Students examine guided notes, review guided practice, watch instructional videos...
Handout
CK-12 Foundation

Ck 12: Geometry: Perimeter and Area Study Guide

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This study guide looks at the definitions and units for perimeter, area, and circumference, and at the perimeter and area of different shapes, including regular...
Lesson Plan
PBS

Pbs Mathline Lesson Plan: Struts'n Stuff [Pdf]

For Teachers 3rd - 5th Standards
Incorporating concepts in algebra, number sense, patterning, data collection, and geometry, this lesson engages students in various hands-on activities to explore the relationship between regular polygons and the number of diagonals...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Interior Angles in Convex Polygons

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Find the sum of the interior angles of a convex polygon.
Handout
Oswego City School District

Regents Exam Prep Center: Exterior Angles of Polygons

For Students 6th - 8th
This site explains what the measure of the sum of exterior angles is for any polygon, and shows how to find the measure of individual exterior angles for regular polygons with a drawn example.