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GeoGebraGeoGebra Classroom

Checking the law of sines for some particular cases.

The purpose of this presentation are: 1. Build a dynamic triangle with variable angles and sides. 2. Relate the law of sines to the triangle and note that moving any of the vertices, the law of sines verified. 3. Additionally, using tangents and bisecting the triangle to draw a circumscribed circle of radius r to the triangle. 4. Show the relationship of the law of sines to the circle radius r.