1.

Represent 15 on number line.

Answer»

√5 = √(4+1)

Here 4 and 1 both are perfect square number as √4 = 2 and √1 = 1

So draw right triangle with side 2 and 1

And according to Pythagoras theorem hypotenuse will √(2^2+1^2) = √5

Then draw an arc of √5 on number line


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