30 points will mark brainliest.
i just need instructions on how to do this, if possible.

Step-by-step explanation:

To draw a perpendicular to line L we will use the following steps.

1). We will use the compass first. We will put the compass at the point P and draw an arc which will intersect the line L at two distinct points.

2). Now we will again draw two arcs by taking same measurement in compass

so that these arcs intersect each other.

3). Now we will joint the point of intersection formed by the arcs to the point P with the help of ruler.

In this way we get the line perpendicular to line L.

the photograph is photographer and- in the process- ourselves.

step-by-step explanation: