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Trigonometric Functions

  • George McCarty

Abstract

More than 4000 years ago the Egyptians used ropes knotted in lengths with the ratios 3 to 4 to 5 to form the sides of a triangle in order to determine a right angle. Buildings, and probably the pyramids, were thus erected with the use of elementary, practical trigonometry. Carpenters use this same trick today.

Keywords

Radian Measure Harvest Rate Extinction Time Difference Quotient Degree Measure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EduCALC Publications 1982

Authors and Affiliations

  • George McCarty
    • 1
  1. 1.University of CaliforniaIrvineUSA

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