# Ch 39: NMTA Math: Circles & Arc of a Circle

Use our video lessons and quizzes about math related to circles to help get ready for the NMTA Mathematics test. Our expert instructors will guide you through all the essential topics about circles and their arcs.

## NMTA Math: Circles & Arc of a Circle - Chapter Summary

If you're not feeling quite ready for the NMTA Math test or you just want to convince yourself that you are, our video lessons about circles and their arcs and the associated quizzes can help you. The videos are brief but thorough and can be squeezed into short breaks throughout your day. Watch them anytime, anywhere including on mobile devices. The lessons review all you need to know about the mathematics of circles, including:

• Calculating area and circumference of circles
• Definition of central and inscribed angles
• Steps to take to measure an arc
• Calculating angles and lengths of tangents, chords and secants
• Determining the area and arc length of a sector

Be sure to take the short quizzes that follow each of the lessons so you'll know whether you're retaining the information. Then re-watch any of the videos if you need to.

### Objectives for the NMTA Math: Circles & Arc of a Circle Chapter

We know you want to do well on the NMTA Math test so we have made sure our chapter covers relevant information. The NMTA Math test is computer-based with 150 multiple-choice questions. There are 5 sections on the exam and you may encounter questions about circles on the Measurement & Geometry and Trigonometry & Calculus sections, each of which constitutes about 19% of the test.

You may find questions on the Geometry section that test your ability to solve numerical, word and real-world problems with your knowledge of perimeter, circumference, area, surface area and volume of shapes such as circles. On the Trigonometry section you may find questions assessing your ability to use trigonometric functions to solve problems involving angles and the unit circle.

Are you ready to check circles and arcs off your study list? We'd love to help.

9 Lessons in Chapter 39: NMTA Math: Circles & Arc of a Circle
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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