Trigonometry

Study of triangles and trigonometric functions including sine, cosine, and tangent.

Understanding Angles and TrianglesSine, Cosine, and Tangent FunctionsThe Unit Circle and Radian Measure
Trigonometric Identities and FormulasSolving TrianglesGraphs of Trigonometric Functions
Measuring Heights and DistancesTrigonometry in Engineering and DesignNavigation and GPS
Memorizing Trigonometric ValuesSolving Word Problems with DiagramsChecking Your Work with Inverse Functions
Understanding Angles...Sine, Cosine, and Ta...The Unit Circle and ...Trigonometric Identi...Solving TrianglesGraphs of Trigonomet...Measuring Heights an...Trigonometry in Engi...Navigation and GPSMemorizing Trigonome...Solving Word Problem...Checking Your Work w...
Practical Applications

Navigation and GPS

Finding Your Way

Whether you're hiking in the woods or navigating a plane, trigonometry is your guide. GPS systems use trigonometric calculations to pinpoint locations on Earth.

  • Satellites measure angles and distances to triangulate your position.
  • Maps and compasses rely on trigonometric principles for accurate navigation.

So next time you use a map app, thank trigonometry!

Examples

  • Pilots use trigonometric bearings to calculate the shortest route between two cities.

  • Mariners use celestial navigation, measuring angles to stars to determine their position at sea.

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Memorizing Trigonometric Values