角平分线的性质告诉我们:角平分线上的点到这个角的两边的距离相等.反之,角的内部到角的两边距离相等的点在这个角的平分线上.这两个结论有很多用处,可以用来求线段的长度、角的度数、线段的关系等.下面以2011年中考试题为例来展现角平分线性质的 The nature of the angle bisector tells us that the distance from the point on the angle bisector to the two sides of this corner is equal, whereas the points at both sides of the corner to the equidistant point are on the bisector of this angle. Use, can be used to find the length of the line segment, the angle of the degree, the relationship between line segments, etc. The following 2011 exam questions as an example to show the nature of the angle bisector