Question

locate root 9.3 on the number line

Answer 1

first draw a line = 10.3 cm

then from the centre of the line draw a semi circle

mark a point at 9.3 cm on the line draw perpendicular on the point

now the pependicular distance till where it intersect the semi circle will be root 9.3 cm

open the compass equal to it and from the point we marked earlier cut an arc. the length from point to the arc = root 9.3 cm