Question

please, please, please... give me answer. It's very important.​

Answer 1

Answer:

form a semi circle with the help of rounder by keeping one point on the intial point and draw semi circle with pencil

by keeping Sam distance between point of rounder and pencil cut one arc from rightmost point in the semi circle

and take the perpendicular bisector of both arcs

then 90 degree will form

thank you