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Question

Locate 17 on the number line.

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Solution

Here,17=42+1
So, draw a right angled ΔOAB, in which OA = 4 units and AB = 1 unit and OAB=90
By using Pythagoras theorem, we get
OB=OA2+AB2=42+12=16+1=17

Taking OB=17 as radius and point O as centre, draw an arc which meets the number line at point P on the positive side of it. The point P represents 17 on the number line.

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