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Arc Length - In this unit, we're moving away from triangles, and instead setting our sites on circles! Find out how to find a specific part of the circumference (perimeter) of a circle with only the radius to help you out!
Lesson - Arc Length
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Sector Area - Now that we know how to find sections of the circumference of a circle, let's look at how to find sections of the area! Find out how to find this area with only the radius to help you out, here!
Lesson - Sector Area
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Central and Inscribed Angles - You may have thought we were all done with angles.......but you thought wrong. Find out the difference between a central angle of a circle, and an inscribed one, and how the two relate to each other here!
Lesson - Central and Inscribed Angles
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Tangent and Circumscribed Angles - So just like with triangles, we've looked at angles inside of a circle, but what happens when we have an angle outside of the circle, but still touching the circle? Find out how to deal with those, and more, here!
Lesson - Tangent and Circumscribed Angles
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Angles Inscribed in Quadrilaterals - Speaking of inscribed angles, can we find them in other shapes? Find out how to deal with them when we're dealing with quadrilaterals inside circles as well!
Lesson - Angles Inscribed in Quadrilaterals
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Circles: Deriving Standard Form of a Circle - We've looked at a ton of different properties of circles. However, we never looked at the algebra of what makes up a circle. Find out how to find the standard form of a circle, and where all of that came from!
Lesson - Circles - Deriving Standard Form of a Circle
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Completing the Square Review - Now let's take a refresher on how to complete the square properly. This is very important when dealing with circles. Find out how here!
Lesson - Completing the Square
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Circles: Converting from General to Standard Form - That refresher is going to help us an awful lot! Learn what to do when we find ourselves with the general form of a circle, but we want more information like the center and radius!
Lesson - Circles - Converting from General to Standard Form
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Circles: Converting from Standard to General Form - So we know how to get a general form equation to standard, but what if we want to work backwards for some reason? Well, here's how to do that!
Lesson - Circles - Converting from Standard to General Form
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