Search the courses, subjects, tracks, games and features, or jump straight to a page.
2 cards from this section. Quick, good the night before a test.
What is the area of a sector of a circle with radius 6 cm if the angle is 60°?
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°?
Start by rearranging the sector area formula.
What is the area of a sector with an angle of 90° and radius of 8 cm?
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?
Remember what each area contains!
In a circle of radius 30 cm, a sector has an angle of 150°. Calculate the area of the sector and segment formed.
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?
Use the entire hand length and the angle covered!
4 more questions in this section. Enroll free to practise them all.
Enroll free