Find the square root of 2.25

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Solution

$2.25 = \frac{225}{100}$
And square root of 225 = $\sqrt{225} = \sqrt{15 \times 15} = 15$
and square root of 100 = $\sqrt{100} = \sqrt{10 \times 10} = 10$
So; $\sqrt{2.25} = \sqrt{\frac{225}{100}} = \frac{15}{10} = 1.5$

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