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Measuring Angles

In geometry, we classified all straight lines in three groups: segmentsrays, and lines. We studied all these figures in detail in the geometry lessons. We will use rays to define how lines become angles. We will then begin discussing ways to measure angles. This lesson covers the following topics:

  • Rays
  • The measurement of an angle
  • Measuring scales of angles
  • The relationship between radian and degree measures
  • Angle of elevation