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在平面直角坐标系中,已知A、B两点怎样在坐标轴上找到一点C使△ABC为直角三角形.这样的问题在中考题中经常见到,是一个多解问题,学生在想此问题时经常考虑的不全面,在小题中丢掉全部的分值,在大题中丢掉一部分分值,其实这类问题掌握方法也可以轻松解决.如果∠A为直角,过点A做线段AB的垂线,与坐标轴的交点就是所找的C点.如果∠B是直角,过点B做线段AB的垂线,
In plane Cartesian coordinate system, it is known how A and B can find a point C on the coordinate axis so that ABC is a right-angled triangle. This kind of problem is often seen in the test questions, which is a multi-solution problem. Students think this Often consider when the problem is not comprehensive, in the small topic to lose all the points, in the big problem lost some of the points, in fact, such methods can easily solve the problem. If ∠ A is right angle, Of the vertical line, and the intersection of the coordinate axis is to find the point C. If ∠ B is a right angle, over point B to be the vertical line AB,