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4.  Represent \sqrt{9.3} on the number line.

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Draw a line segment AB of 9.3 units.

Then, extend it to C so that BC = 1 unit. 

Find the mid-point O of AC and draw a semi-circle on AC while taking O as its centre and AO as the radius.

Now, Draw a perpendicular to line AC passing through point B and intersecting the semi-circle at D.

Now, Take B as the centre and BD as the radius, and draw an arc intersecting the number line at E.

The length BE is $\sqrt{9.3}$ units.

Posted by

Gautam harsolia

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