Understand circles and their measurement applications.

[Free Registration/Login may be required to access all resource tools.] In this lesson students find areas of combined figures involving circles. Students examine guided notes, review guided practice, watch instructional videos and...

Brush up on your math skills relating to the circumference of circles of measurement then try some practice problems to test your understanding.

Brush up on your math skills relating to the area of circles then try some practice problems to test your understanding.

Circle Geometry math for kids contains information for students to learn about terms radius, diameter, circumference, chord, and pi.

[Free Registration/Login may be required to access all resource tools.] In this lesson students find the diameter or radius of a circle given the circumference. Students examine guided notes, review guided practice, watch instructional...

[Free Registration/Login may be required to access all resource tools.] In this lesson students find the diameter or radius of a circle given its circumference. Students examine guided notes, review guided practice, watch instructional...

Practice problems finding radius and diameter of a circle.

This is where you can pick up some valuable pointers on how to find the circumference and area of a circle. There is also information on how to find the perimeter and area of a semicircle. When you finish working your way through the...

A complete reference guide to circles including parts, angles, and arcs. It provides definitions and interactive activities that enhance further explanation.

For this task, students are asked to explain the formula for finding the circumference of a circle. Aligns with G-GMD.A.1.

Learn about parts of a circle with this pictorial index. Click on the diagrams for more information. Includes links to related topics.

Learn about the circumference of a circle with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

A complete reference guide to the area enclosed by a circle. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

Use this circle calculator to find the area, circumference, radius, or diameter of a circle. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns.

Basic useful information regarding circles is provided.

Lesson presents definitions of terms associated with circles and helps students learn to use a compass to draw circles and simple circle designs.

[Free Registration/Login Required] Students identify segments and lines related to circles and the properties of a tangent to a circle.

Find the circumference of a circle when given either the radius or diameter.Find the radius or diameter of a circle when given the circumference.Students receive immediate feedback and have the opportunity to try questions repeatedly,...

Practice finding the circumference of a circle.

In this video segment from Cyberchase, the CyberSquad must reclaim the Totally Rad Ring by measuring its radius to create a perfect duplicate.

[Free Registration/Login may be required to access all resource tools.] In this lesson studednts find the areas of combined figures involving parts of circles. Students examine guided notes, review guided practice, watch instructional...

This site from Mathworld provides a wealth of information about circles is presented. The information ranges from the basics--radius, circumference, etc.--to advanced concepts--equations in polar and pedal coordinates, etc.

Students will play an interactive game to identify the circumference, radius, center, and diameter of circles.