Trigonometry Smarts!

by Wingard-Nelson, Rebecca; Caron, Lucille; St. Jacques, Philip M.

• ISBN13: 9780766039445
• ISBN10: 0766039447
• Format: Hardcover
• Copyright: 2011-08-01
• Publisher: Enslow Pub Inc

Summary

Are you having trouble with trigonometry? Do you wish someone could explain this challenging subject in a clear, simple way? From triangles and radians to sine and cosine, this book takes a step-by-step approach to teaching trigonometry. This book is designed for students to use alone or with a tutor or parent, and provides clear lessons with easy-to-learn techniques and plenty of examples. Whether you are looking to learn this information for the first time, on your own or with a tutor, or you would like to review some trigonometry skills, this book will be a great choice.

Author Biography

Rebecca Wingard-Nelson has worked in public, private and home-school mathematics education. She has been involved in various educational math projects, including developing and writing state assessment and proficiency tests, as well as writing and editing text books.

Table of Contents

introduction	p. 5
Lines and Angles	p. 6
Angles and Their Measure	p. 8
Triangles	p. 10
Congruent Triangles	p. 12
Identifying Congruent Triangles	p. 14
Ratios and Proportions	p. 16
Similar Triangles	p. 18
Right Triangles	p. 20
Square Roots	p. 22
The Pythagorean Theorem	p. 24
Using the Pythagorean Theorem	p. 26
The Converse of the Pythagorean Theorem	p. 28
Trigonometric Ratios	p. 30
Trigonometry of Right Triangles	p. 32
Relating the Trigonometric Functions	p. 34
Complements and Cofunctions	p. 36
Reciprocal Identities	p. 38
Trigonometry Tables and Calculators	p. 40
Sine, Cosecant and Side Length	p. 42
Cosine, Secant, and Side Length	p. 44
Tangent, Cotangent, and Side Length	p. 46
Finding the Angle Measure	p. 48
The Trigonometric Identities	p. 50
sosceles Right Triangles	p. 52
30-60-90 Triangles	p. 54
The Unit Circle	p. 56
Signs of Trigonometric Functions	p. 58
Radians and Degrees!	p. 60
Further Reading and Internet Addresses	p. 62
Index	p. 63
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