4. Represent $$\sqrt{9.3}$$ on the number line.
Firstly we draw AB = $$\sqrt{9.3}$$ units. Now, from B, mark a distance of 1 unit.
Therefore, the distance BD = $$\sqrt{9.3}$$ units.
Draw an arc with centre B and radius BD which intersects the number line at point E, then the point E represents $$\sqrt{9.3}$$ .