# Circles

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Take Quiz 1 to identify your areas for growth. We'll recommend lessons for exactly what you need to learn.

Lessons

Circle basicsArc measureArc length (degrees)Introduction to radiansQuiz 1Arc length (radians)SectorsInscribed anglesQuiz 2Inscribed shapes problem solvingProperties of tangentsArea of inscribed triangleQuiz 3Standard equation of a circleExpanded equation of a circleUnit testPractice

Quizzes

Unit test

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Area of a sector

4 questions

Practice

Learn

Learn

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Tangents of circles problems

100%

100%

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Write standard equation of a circle

4 questions

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Practice

Features of a circle from its expanded equation

4 questions

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Graph a circle from its expanded equation

4 questions

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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.