Answer:
The compass point must be placed on points A and B because you need to make arcs which would allow you to make the perpendicular line through the given line. The construction would be different if the compass point were placed at random points on the original line because then the line would not be lined up correctly in the middle and it will not be correct, hence why you need to put the compass on A and B.
Step-by-step explanation: This is what I said for my answer on edg
The reason for the compass point to be placed on points A and B is; we need to make arcs which would be used to make the perpendicular line through the point P.
The steps in constructing a perpendicular line through a point are;
1.Open the compass to a radius less than half the segment.
2. Draw two arcs intersecting the line on both sides of the point.
3. Draw two arcs using the intersection points as the centers. ...
4. Construct a line between this point and the original point.
Now, the reason why it is important for the compass point to be placed on points A and B is because we need to make arcs which would be used to make the perpendicular line through the point P.
Finally, we can say that if the compass point were placed at random points on the original line ,the construction would be different because it means that the line would not pass through the middle and as such will be inaccurate.
Read more about line construction at;
https://brainly.com/question/13300895
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