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An introduction and a guide to trigonometry, with hints and answers to exercises, and Java applets as illustrations. Contents include applications of trigonometry, angle measurement, chords, sines, cosines, tangents and...
This math unit from Illuminations includes two lessons which help to teach the Law of Sines and the Law of Cosines. The first lesson asks students to use right triangle trigonometry to develop the law of sines. The...
This interdisciplinary math lesson from Illuminations may be used in conjunction with geography education. Students will consider strategies for figuring out the distance to the horizon from various heights. A formula...


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