Question

draw a line segment PQ is equal to 8 cm .draw perpendicular at p

Answer 1

first draw aline segment pq equal to 8cm, then with p as centre and some radius, draw a semicircle with p as centre, now all you need to is that let pq and intersect at a , so with a as centre cut an arc at the semicircle made early then cut another arc by putting the compass on the previous arc made on the semicircle, now at the same arc, cut another arc above it any length, do it with both and let the arcs made above intersecting at r then join to, you can check if it made accurately then by checking by protector it will be 90 degree so perpendicular is made thank me ambitious plz