Question

locate root 3.9 on number line​

Answer 1

Step-by-step explanation:

Draw a line AB measuring 9.3 units, or 9.3 cms

From point B, add 1 cm, mark the point as ‘C’

Take compasses and bisect the line, mark the point of bisection as ‘O’. I hope you’re familiar with bisecting a line with compasses.

Measure ‘AO’, ‘AO’ acts as radius, with ‘O’ as centre, draw a semicircle.

From ‘B’, draw a line perpendicular ‘AB’, touching the semicircle drawn at a point, say, ‘D’. Mark it as sqrt(9.3) .

Take compass pointer on ‘B’, pencil on ‘D’, draw an arc on the number line.

The point which intersects Number Line is sqrt(9.3) .