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Circles Videos
This video can run circles around other videos about circles. Sir Cumference, of Round Table fame, explains all the properties of… well, circles. Whether you're looking for how the radius relates to the diameter or how to deal with pi (when you’re not eating it, that is), this video covers the basic attributes of our circular friends. Our rotund knight even hits on area and perimeter, too. En garde!
Central Angles Videos 2 videos
ACT Math: Plane Geometry Drill 3, Problem 3. What is the measure of angle ABC?
SAT Math 11.1 Geometry and Measurement. If y equals 117°, what is the measure of x?
Circumference Videos 9 videos
It's super useful to be able to find the distance around stuff. Like when you’re being pursued by authorities while running around the base of an...
SAT Math 1.1 Geometry and Measurement. What is the circumference of the circle?
In this GED math problem, figure out which part of the circle has a measurement of 8 units when the area is given.
Equations of Circles Videos 6 videos
ACT Math: Plane Geometry Drill 5, Problem 1. What is the area of the circle?
SAT Math 10.5 Geometry and Measurement. How many rotations does each tire make?
Tangents and Secants Videos 5 videos
Mosquitos need their caffeine, just like the rest of us. Wouldn't think zipping around and stinging people all day long sap your energy?
