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Trigonometry For Dummies, 3rd Edition
book

Trigonometry For Dummies, 3rd Edition

by Mary Jane Sterling
March 2023
Beginner content levelBeginner
400 pages
9h 38m
English
For Dummies
Content preview from Trigonometry For Dummies, 3rd Edition

Chapter 3

Finding Degrees in Triangles and Planes

IN THIS CHAPTER

Bullet Measuring angles in degrees

Bullet Putting angles in standard position

Bullet Finding many measures for the same angles

Bullet Getting angles to work for you

The main concept that distinguishes trigonometry from other mathematical topics is its attention to and dependence on angle measures. The trig functions (sine, cosine, tangent, cotangent, secant, and cosecant) are ratios based on the measures of an angle. What good are degrees (no, not the kind that tell you how hot or cold it is) in the real world? Navigators, carpenters, and astronauts can’t do without them. How do you measure the degrees? You have many ways, dear reader, and I show you all you need to know in this chapter.

Angles, Angles Everywhere: Measuring in Degrees

What’s a degree? When you graduate from college, you get your degree. The temperature outside went up a degree. When questioned, you get the third degree. All these scenarios use the word degree, but in trigonometry, a degree is a tiny slice of a circle. Imagine a pizza cut into 360 equal pieces (what a mess). ...

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Publisher Resources

ISBN: 9781394168552Purchase Link