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Arc Length

by Allen Wolmer

Arc LengthA radian is another unit of measurement for angles just like degrees. Radians are especially convenient for measuring angles that have to do with circles. There are  360 degrees in a circle and 90 degrees in a right angle. How many radians are in a circle and how many radians make up a right angle?Lesson, videos, exercises, and text from CK-12. Additional resources available at this site.
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Sector Area

by Allen Wolmer

Sector AreaYou make a 10? diameter cheesecake for a party and coat the top in a layer of chocolate. You divide the cheesecake up into equal slices so that the central angle of each slice is  15 degrees . How many square inches of chocolate are on the top of each slice?Lesson, videos, exercises, and text from CK-12. Additional resources available at this site.
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Curriki RatingC
'C' - Curriki rating

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