Law of Sines

Move around the end points of the triangle and observe that the ratios are the same for all 3 pairs, for any given triangle.

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Play around and try to find two NON-congruent triangles that share the same invariant ratio.

Try to find a triangle where the ratio equals 10.

Try to find a triangle where the ratio equals 20.

Dave Matthews, March 28, 2007, Created with GeoGebra