Question

represent under root 6.4 on the number line

Answer 1

hii here is your answer.
1.draw 4.6cm and increase 1cm total 7.4cm
2.then, you do half of 7.4cm (in figure).
3.draw a semicircle.
4.draw a perpendicular line from to the line of semicircle and point it.
from 1cm to line of semicircle is answer