ModelCourses/Trigonometry/MoreApplications

More Application of Trig Functions

• Angle of elevation and angle of depression
• Distance and Bearing
  • Two ships
• Arc length
  • Given angle in radians, determine length of arc (ala satellite distance traveled)
  • Given angle in degrees, determine length of arc
  • Given arc length and radius, determine angle
  • Arc length traveled over a certain amount of time.
• Area of Circular Sector
  • Given angle and radius, determine area of sector (ala lawn sprinkler or windshield wiper)
  • Given area and radius, determine angle
• Velocities
  • Angular velocity (ala grandfather clock)
  • Fixed angular velocity related to linear velocity for different radii
  • Linear velocity (ala satellite speed or various diameter bicycle wheels)
    • Bicycle wheel/gears would be a nice place to use an interactive app...
  • Nice app dealing with linear velocity of persons at various latitudes
  • RPMs for fan blades or lawnmower blades or propellers given angular velocity in some form.

ModelCourses/Trigonometry