Circle Theorem - SAT
More Lessons for New SAT Additional Topics
More Lessons for SAT Math
More Resources for 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
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.
You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.