To draw an arc of given radius touching two straight lines at right angles with each other, we first draw ______ with centre at the intersection point of the two lines on both the lines.
(a) An arc
(b) A circle
(c) A square
(d) A triangle
The question was posed to me during an interview for a job.
My question comes from Drawing Regular Polygons & Simple Curves in division Geometrical Construction of Engineering Drawing