Trigonometry is a branch of mathematics that studies relationships between angles and sides of triangles. It involves sine, cosine, and tangent concepts, which calculate angles and sides in various scenarios. Trigonometry has applications in fields such as physics, engineering, and architecture, where understanding the relationships between angles and sides is important. It is a fundamental topic in mathematics and is often studied in high school and college. Overall, trigonometry is crucial in solving problems involving triangles and is used extensively in practical applications. This book Trigonometry Basics: Solving Triangles and Trigonometric Functions is divided in to 8 chapters each delving into specific aspects of this mathematical discipline, from foundational concepts to advanced applications.