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PREFACE:

his text was developed for use in a Geometry and Trigonometry course for Engineering Technology students.

 Many technical mathematics textbooks also include all of the math and algebra topics in addition to geometry and trigonometry.

 In most cases, the students have already had one or more algebra courses, and therefore do not need another expensive textbook with these topics. 

This text, therefore, is intended to be a low-cost alternative to the all-inclusive textbooks. At my school we use this text for students who are preparing for careers in the mechanical, architectural, and civil engineering fields.

 Practice problems from each of these fields are included so that the students can see real-world examples of how the trigonometry functions are used. 

This text assumes that the students have solid algebra skills for solving simple equations.

 In addition, it is assumed that the students have a working knowledge of the Cartesian coordinate system.

 The examples in this text are fully-worked problems to illustrate solutions for the students. The exercises are problems for the students to solve.

 Answers and solutions to these exercises are provided in the Appendix at the end of the text.

You will encounter applications of trigonometry in most engineering fields. This text provides examples of how trigonometry is applied in the mechanical, architectural, and civil fields.

 Some topics in physics, specifically mechanics, also use trigonometry to solve problems. If you learn how to use CAD programs (such as AutoCAD), you may find that the software can relieve you of performing trigonometry calculations. You should understand, however, what the software is doing, and be able to do the same calculations manually.