# Trigonometry: Straight Forward Math Series (Large Edition)          Trigonometry: Straight Forward Math Series (Large Edition)

Interest Level: N/A

Topics include: Facts about Triangles; Trigonometric ratios; Applications; Non-right Triangles. Practice, review, and testing included. An answer key is included in this 96-page book.

SKILLS REVIEW:
Converting a Fraction into a Decimal
Acute, Obtuse, and Right Triangles
The Subtraction Principle
Approximately Equal
Square Roots
The Square Root Principle

CHAPTER 1:  Facts about Triangles
Triangles
Right Triangles
The Pythagorean Theorem
Finding the Length of a Leg
Pythagorean Formulas
Applications
Review

CHAPTER 2:  Trigonometric Ratios
Ratios
Opposites and Adjacent Sides
The Sine, the Cosine, and the Tangent
Three Facts
Tables
Calculators
Review

CHAPTER 3:  Applications
Cross Multiply and Divide
Finding and Unknown Side
Applications
Finding and Unknown Angle
Review

CUMULATIVE REVIEW CHAPTERS 1 - 3

APPENDIX:  Non-Right Triangles
The Law of Sines
Law Sines and Applications
The Law of Cosines