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Intuitive Trigonometry/Appendix 1: Solutions to Problems

Appendix 1: Solutions to ProblemsEdit

Radians and Arc LengthEdit

  1.   is our formula for arc length; we can plug in our given values and solve.   which simplifies to   (notice the degree signs cancel) and further simplifies to   which is our solution.
  2.  , so we can create a proportion
  3.  , so we can create a proportion
  4.   is our formula for arc length; we can plug in our given values and solve.   which simplifies to   or   or  , which is our solution.