Question

how to represent rute 5 no number line

Answer 1

take a two units line on a number line from 0 to 2.
draw perpendicular of 1 unit at the point 2.
now join these lines.it formed root 5.

you can prove it by pythagorus theorem.

Answer 2

take a to unit line on the point from 0to2. draw a perpendicular from point a and 2 and 0