Sophia Learning
Sophia: Central Angle
Central angles are defined in this tutorial. Students learn about the math concept by watching a video lesson.
Study Pug
Study Pug: Angles in a Circle
Video shows how to find an angle inscribed in a circle. [1:58]
Khan Academy
Khan Academy: Circle Theorems Harder Example
The video lesson from Khan Academy provides practice questions for the SAT. Watch Sal work through a harder Circle theorems problem.
Sophia Learning
Sophia: Finding the Area of a Sector Using the Central Angle: Lesson 5
This lesson explains how the central angle can be used to determine the area of a sector. It is 5 of 5 in the series titled "Finding the Area of a Sector Using the Central Angle."
Sophia Learning
Sophia: What a Central Angle Is
This lesson defines the phrase central angle. Student can watch a video tutorial and then take an online quiz.
Sophia Learning
Sophia: Sector Area of a Circle: Lesson 1
This lesson will demonstrate how to find the area and radius of a circle when given the sector area and central angle measure. It is 1 of 8 in the series titled "Sector Area of a Circle."
Sophia Learning
Sophia: Sector Area of a Circle: Lesson 5
This lesson will demonstrate how to find the area and radius of a circle when given the sector area and central angle measure. It is 5 of 8 in the series titled "Sector Area of a Circle."
Sophia Learning
Sophia: Sector Area of a Circle: Lesson 7
This lesson will demonstrate how to find the area and radius of a circle when given the sector area and central angle measure. It is 7 of 8 in the series titled "Sector Area of a Circle."
Sophia Learning
Sophia: Sector Area of a Circle: Lesson 8
This lesson will demonstrate how to find the area and radius of a circle when given the sector area and central angle measure. It is 8 of 8 in the series titled "Sector Area of a Circle."