怎样用一条线将一个三角形分成三个三角形
\u5982\u4f55\u5728\u4e00\u4e2a\u68af\u5f62\u4e2d\u753b\u4e00\u6761\u7ebf\u6bb5\u4f7f\u5176\u5206\u6210\u4e09\u4e2a\u4e09\u89d2\u5f62\u5982\u4f55\u5728\u4e00\u4e2a\u68af\u5f62\u4e2d\u753b\u4e00\u6761\u7ebf\u6bb5\u4f7f\u5176\u5206\u6210\u4e09\u4e2a\u4e09\u89d2\u5f62------\u53ef\u4ee5\u8d1f\u8d23\u4efb\u7684\u544a\u77e5\u9601\u4e0b\uff1a\u8fd9\u662f\u4e0d\u53ef\u80fd\u7684\uff01
\u662f\u4e0d\u662f\u6761\u4ef6\u6709\u8bef\uff1f
1 \u5148\u753b\u4e2a\u5706
2 \u5728\u753b\u51fa\u8fd9\u4e2a\u5706\u7684\u4e00\u5bf9\u6210\u76f4\u89d2\u7684\u76f4\u5f84\uff08\u8bf4\u767d\u4e86\u5c31\u662f\u7528\u76f4\u7ebf\u901a\u8fc7\u9876\u70b9\u628a\u8fd9\u4e2a\u5706\u5206\u62104\u7b49\u4efd\uff0c\u61c2\u4e86\u4e0d\uff09
3 \u4e00\u4e2a\u76f4\u5f84\u7b49\u4e8e\u4e24\u4e2a\u534a\u5f84\uff0c\u968f\u4fbf\u9009\u4f60\u753b\u7684\u76f4\u5f84\u4e0a\u4f60\u4efb\u4f55\u4e00\u4e2a\u534a\u5f84\uff0c\u627e\u5230\u5b83\u7684\u4e2d\u70b9
4 \u7528\u5706\u89c4\u4ee5\u8fd9\u4e2a\u4f60\u627e\u7684\u4e2d\u70b9\u4e3a\u4e00\u70b9\uff0c\u91cf\u51fa\u4e0e\u4f60\u627e\u4e2d\u70b9\u6240\u5728\u534a\u5f84\u6240\u5782\u76f4\u7684\u534a\u5f84\u4e0e\u5706\u7684\u8fb9\u7684\u4ea4\u70b9\u7684\u957f\u5ea6
5 \u4fdd\u6301\u8fd9\u4e2a\u957f\u5ea6
6 \u4ee5\u4f60\u6240\u627e\u7684\u4e2d\u70b9\u4e3a\u5706\u5fc3\uff0c\u4ee5\u4f60\u627e\u7684\u957f\u5ea6\u753b\u5706
7 \u6211\u4eec\u5c31\u53ef\u4ee5\u770b\u89c1\u4e2d\u70b9\u6240\u5728\u7684\u76f4\u5f84\u4e0a\u6709\u6709\u4e86\u4e00\u4e2a\u70b9
8 \u627e\u5230\u65b0\u7684\u70b9\uff0c\u8fd8\u662f\u7528\u5706\u89c4\u91cf\u51fa\u4e0e\u4f60\u70b9\u6240\u5728\u534a\u5f84\u5782\u76f4\u7684\u534a\u5f84\u4e0e\u5706\u8fb9\u7684\u4ea4\u70b9\u7684\u8ddd\u79bb
9 \u597d\u4e86\uff0c\u5c31\u5feb\u5927\u529f\u9ad8\u6210\u4e86\uff0c\u4fdd\u6301\u8fd9\u4e2a\u8ddd\u79bb
10 \u4e0d\u8981\u7ba1\u4ee5\u524d\u753b\u7684\u4ec0\u4e48\u76f4\u5f84\u554a\uff0c\u534a\u5f84\u4ec0\u4e48\uff0c\u7528\u8fd9\u4e2a\u8ddd\u79bb\uff0c\u5728\u5706\u7684\u8fb9\u4e0a\u627e\u4e00\u70b9\uff0c\u753b\u4e2a\u5706\uff0c\u4f60\u53ef\u4ee5\u5f97\u52303\u4e2a\u70b9\uff0c\u5728\u5206\u522b\u7528\u5176\u4ed6\u4e24\u4e2a\u70b9\u753b\u56ed\uff0c\u53c8\u53ef\u4ee5\u5f97\u5230\u4e24\u4e2a\u70b9
11 \u8fde\u63a55\u4e2a\u70b9
12 \u5b8c\u6210
\u867d\u7136\u8fd9\u4e2a\u65b9\u6cd5\u4e0d\u5982\u4e0a\u9762\u7684\u7b80\u5355\uff0c\u4f46\u662f\u5982\u679c\u662f\u8003\u8bd5\u8981\u4f60\u753b\u6b635\u8fb9\u5f62\u7684\u753b\uff0c\u8fd9\u4e2a\u5c31\u662f\u6807\u51c6\u7b54\u6848\uff0c\u4e0a\u9762\u7684\u5f88\u7b80\u5355\uff0c\u4f46\u662f\u5728\u6ca1\u6709\u91cf\u89d2\u5668\u7684\u60c5\u51b5\u4e0b\u5462
\u4e00\u822c\u8fd9\u79cd\u9898\u76ee\u4f1a\u8868\u660e\u7528\u5706\u89c4\uff0c\u6216\u8005\u8bf4\u4e0d\u8bb8\u7528\u91cf\u89d2\u5668
\u5176\u5b9e\u8fd9\u4e2a\u65b9\u6cd5\u5f88\u7b80\u5355\u7684\uff0c\u4f1a\u4e86\u5c31\u89c9\u5f97\u597d\u7b80\u5355\uff0c\u800c\u4e14\u753b\u51fa\u6765\u7684\u975e\u5e38\u6807\u51c6
当这条线这么粗的时候就可以分成三个三角形了.
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