Question

Find the rational no. given below:
a)$\sqrt{27}$
b)$\sqrt{36}$
c)$2\sqrt{3}$
d)$2+\sqrt{21}$

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Answer 1

Answer:

√36 = 6

Step-by-step explanation:

$\sqrt{27} = irrational$

$\sqrt{36} = 6 = rational$

$2 \sqrt{3} = irrational \\ 2 + \sqrt{21} = irrational$

Therefore, Only √36 is rational number and the other numbers are all irrational.