三角形的第三条变小于什么是锐角三角形?

来源：蜘蛛抓取(WebSpider) 时间：2012-02-20 13:05 标签： 什么是锐角三角形
为什么三角形两边之和一定要大于第三边?
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这个是三角形的基本性质,如果两边之和小于等于第三边,就构不成三角形.希望对你有帮助~~~
你这样光说我不信，你最好举几个例子图形帮我理解，谢了
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举个简单的例子，取极限情况，把2条边抻直，如果还没有第三条边长，那怎么能组成三角形呢
因为两点之间直线最短，另外两根是折线，自然就会多长
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/etc/nginx/nginx.conf.三角形第三边长怎么算_百度知道三角形任意两边之和与第三条有着怎样的关系
因为两点之间线段最短所以三角形两边之和大于第三边
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三角形任意两边之和大于第三边
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