Question

locate √7.9 on no. line

Answer 1

1. Draw AB=7.9 units
2. Now extend AB till C such that BC = 1 unit.
3. Now mark centre of AC at F and taking AF as radius and F as centre draw a semi circle till C.
4. Now extend B to the semi circle such that it meets the circumference to D.
5. Hence BD=
$\sqrt{7.9}$