Trigonometry Introduction and Practical Skills

Trigonometry is used for mapping, civil engineering, architecture, computer graphics, astronomy, physics and a whole range of other science, technology and engineering applications. That's why you'll need trigonometry in order to advance on to geometry and calculus.
Trigonometry is an area of mathematics that is just as large as algebra. Many books bog you down with exercises that have no practical purpose outside of trigonometry itself, and with subjects such as proofs.
In this book you'll learn how to use trigonometry to calculate unknown lengths and angles of triangles, the heights of objects, the areas of triangles and polygons, the resultant force vector, and other physical quantities.