Relate the length of an arc to the circumference of a whole circle and the central angle subtended by the arc. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

[Free Registration/Login may be required to access all resource tools.] This study guide reviews the terminology for circles (tangent, arcs, central angles) and the equation for a circle.

Solve problems related to radians and arc length like finding an arc length given the central angle and radius.

This Wide Angle video segment explores economic and religious development in Kayseri, a city in central Turkey.

This is a question response page from the University of Regina where you will find an algorithm for finding the number of degrees of any convex polygon.

This is a question response page from the University of Regina where one may find an algorithm for finding the number of degrees of any convex polygon.

This is a question response page from the University of Regina where you will find an algorithm for finding the number of degrees of any convex polygon.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students properties of inscribed quadrilaterals in circles.

[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to find the area of sectors and segments of circles. Students examine guided notes, review guided practice, watch instructional...

Learn about arc length with this handy reference guide. Provides a detailed definition examples, and an interactive activity that enhances further explanation. Includes links to related topics.

[Free Registration/Login Required] This lesson lets students identify, draw, and measure parts of a circle. The lesson compliments 5th grade Harcourt Math, Lesson 23.4. Activote assessment is included at the end of the lesson.

Learn about sectors with this handy reference guide. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.

In this video from Wide Angle, learn about the farmers of Vidarbha in central India who have seen a loss in profits due to the high cost of borrowing money and the low prices for their crops in a globalized market.

Guilloche, usually spelled without the acute accent on the final e, describes a repetitive architectural pattern widely used in classical Greece and Rome, consisting of two ribbons that wind around a series of regular central points....

Solve problems related to tangents of circles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Solve problems related to tangents of circles.