Intuitive Trigonometry/Appendix 1: Solutions to Problems

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Appendix 1: Solutions to Problems[edit | edit source]

Radians and Arc Length[edit | edit source]

  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.