11.1 - Areas of Sector and Segment of a Circle
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is the area of a sector of a circle with radius 6 cm if the angle is 60°?
💡 Hint: Remember to use the area formula for sections based on the angle.
How would you calculate the radius if you know the area of a sector is 15.7 cm² and the angle is 90°?
💡 Hint: Start by rearranging the sector area formula.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the area of a sector with an angle of 90° and radius of 8 cm?
💡 Hint: Think about how much of the whole circle you are using.
Is the area of a segment always smaller than the area of a sector?
💡 Hint: Remember what each area contains!
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
In a circle of radius 30 cm, a sector has an angle of 150°. Calculate the area of the sector and segment formed.
💡 Hint: Remember to break down the segments and use the triangle's properties.
If a clock's hour hand covers an angle of 240° and has a radius of 12 cm, what is the total area covered?
💡 Hint: Use the entire hand length and the angle covered!
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.