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1919年,著名几何学家R.Weitenbock(外森比克)提出并证明了不等式a2+b2+c2≥4槡3S,其中a,b,c,S分别为△ABC的3条边长及面积.本文给出其如下一种加强,供参考.
In 1919, the famous geometrischer R. Weitenbock proposed and proved the inequality a2 + b2 + c2≥4 槡 3S, where a, b, c and s are the three sides of △ ABC and the area This article gives one of the following enhancements for reference.