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You are not logged in. #1 20120117 20:24:13
It's geogebra time!Inside an equilateral triangle labelled ABC a point D is placed. The distance from D to the 3 vertices is 5, 12 and 13. What is the area of ABC? We are quite close! In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 