rewrite this
For any two points, the point equidistant from them is the point which lies on the perpendicular bisector of the segment between them. Now, when we draw a line segment having the mid-points of the baselines as their end-points, the perpendicular bisector will be the line that is at right angles to the baselines. This line will be located exactly in the middle of the two points. On a tennis court, this line is represented by a net. Therefore, the part equidistant from the mid-points of the two baselines is the net.