Question

to draw a perpendicular from a given point P on line xy name the point where the needle of the compass should be placed first

Answer 1

> The needle of the compass should first be placed at point P.
> Two arcs are then drawn to cut line xy at two points, say A and B.
> The needle of the compass should then be moved to point A and an arc drawn either above or below line xy
> The needle should then be moved to point B and and arc drawn to intersect the arc that was drawn from point A
> The point of intersection of the two arcs drawn from points A and B should then be joined to point P.
>This line will be perpendicular to line xy