Topic outline

  • Welcome

    Trigonometry is the study of triangles. The discipline began with the need to survey the land. Trigonometry has enabled us to map a country (or a continent) by the technique of triangulation. If you want to grow your knowledge, then read the book, available on "", entitled: "The Great Arc: The Dramatic Tale of How India Was Mapped and Everest Was Named". It was published in paperback on August 6, 2001. The author is John Keay. Nowadays trigonometrical knowledge lies at the heart of GPS ("global positioning systems") technology.
    • Trigonometry

      You will learn:

      1. How to derive and apply compound angle identities;
      2. How to solve problems in two and three dimensions.
      Quizzes: 2Lessons: 8Forum: 1Files: 3