Geometry Sources: Discovering Geometry (2008) by Michael Serra Geometry (2007) by Ron Larson.

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Presentation transcript:

Geometry Sources: Discovering Geometry (2008) by Michael Serra Geometry (2007) by Ron Larson

 Trigon – triangle  Metria – measure  “Triangle Measurement” in Greek  Applications in Navigation, Surveying, Astronomy, etc.

TRIGONOMETRIC + RATIO Triangle Measurement + Comparison between quantities So what are we comparing in a trigonometric ratio? A trigonometric ratio expresses a comparison between the lenghts of sides of a (right) triangle.

 Determine the unknown.

 Given: 4 Q a b S R 55 0 Solve for a and b.

 Solve for the unknowns. Express in simplest form.

 Given: 25 T 14 R S

 Determine the angle measures. Express each to the nearest degree.

 Given: 16 p n m Solve for m, n, and p.