Step-by-step explanation:

Step 1: On the number line, take 2 units from O and represent the point as A.

Step 2: At point A, draw a perpendicular and mark B such that AB = 1 unit.

Step 3: Now, with O as the center and OB as radius, draw an arc to cut the number line at C.

Step 4: Point C represents √5 on the number line

In △OAB ,using Pythagoras theorem we have

OB² =OA² +AB²

2² + 1²

= 5

OB = √5 units

Since, OB = OC = √5 units, therefore, point C represents √5 on the number line.

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