Progress
Circle basics
Arc measure
Arc length (degrees)
Quiz 1
5 questions
Introduction to radians
Arc length (radians)
Sectors
Quiz 2
5 questions
Inscribed angles
Inscribed shapes problem solving
Properties of tangents
Quiz 3
5 questions
Standard equation of a circle
Expanded equation of a circle
Quiz 4
5 questions
Constructing regular polygons inscribed in circles
Constructing circumcircles & incircles
Constructing a line tangent to a circle
Unit test
15 questions

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Area of a sector
4 questions
Practice
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Test your understanding of Circles with these 15 questions.
About this unit
Explore, prove, and apply important properties of circles that have to do with things like arc length, radians, inscribed angles, and tangents.