推荐回答（4个）
第一题：18米高的竹竿被风折断（但是还连着，没有完全断开），折断后的竹竿尖（竹梢）碰到地面的地方离原竹竿根部6米，问折断的地方是原来竹竿多高的地方。（我猜想这是个直角三角形，勾股定理的题目。底边为6，三角形另外两边之和是18，设最终答案，也就是垂边为x，那么 x^2+6^2=(18-x)^2，算出来答案应该是8米）
第二题：两个飞机从同一个地方同时起飞，直线相反方向而行。一架飞机的平均速度比另外一架快18公里/小时。1.5小时候，他们相距1179公里，问两架飞机的速度分别是多少。[（x+18)+x]*1.5=1179 算出 x=384， 所以两架飞机速度分别是384公里/小时 和 402公里/小时。
有两架飞机在同一地点往反方向起飞（直线飞行）。一架飞机的平均时速比另一架快18km/h（每小时18公里）,请在两飞机相离1179公里,历经1.5小时的时候,算出两架飞机的速度。
希望有帮助XD~
1一个垂直的竹杆18米高被风吹倒
茎是垂向地面，,这样它的尖总离树根部6米。
茎是倒下多少米?
嗯，答案应该是10吧
竹子长18米，折了，之后折的一半搭拉到地上，相当于一个直角三角形，地面那边长6米，竹子占两边长18米。设高 X ，(18-x)^2=x^2 6^2， x=8
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