Circle Theorem - SAT

This video is for the redesigned SAT which is for you if you are taking the SAT in March 2016 and beyond.

How to find length of arc given angle in radians?

Circle Theorem - Harder Example

The sector of a circle shown above has center at point 0. The radius of the circle is, 5, and the length of the chord AB is 6. Line segment CO is perpendicular to line segment AB. What is the length, l, of the line segment CO?

(You could answer this question quicker if you know the arc length formula. Arc Length = θ•radius, where θ is in radians)

Go to next Question

Try the free Mathway calculator and problem solver below to practice various math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.