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勾股定理是平面几何知识中的“瑰宝”．在运用勾股定理解决实际问题时,若能结合运用一些数学思想,往往可以使思路开阔,方法简捷．
The Pythagorean theorem is a “treasure” in the knowledge of plane geometry. When using the Pythagorean theorem to solve practical problems, if you can combine some mathematical ideas, you can often make your ideas broad and simple.