Question

Represent
$\sqrt{8.1}$
on number line​

Answer 1

Answer:

$\huge\fbox\red{❥︎Answer}$

Mark the distance 8.1 units from a fixed point A on a given line to obtain a point B such that AB=8.1 units. From B, mark a distance of 1 unit and mark the new points as C. Find the mid-point of AC and mark that point as O. Draw a semicircle with a centre O and radius OC. Draw a line perpendicular to AC passing through B and intersecting the semicircle at D.

$bd \: = \sqrt{8.1}$

Now, draw an arc with centre B and radius BD, which intersects the number line in E. Thus,

$e \: represents \: \sqrt{8.1}$

.