# How do you find the square root of 1800?

Jul 31, 2015

You can write it as: $\sqrt{1800} = 30 \sqrt{2}$
(that can also be written as: $\approx 30 \cdot 1.4 = 42$)
$\sqrt{1800} = \sqrt{18 \cdot 100} = \sqrt{18} \sqrt{100} = 10 \sqrt{18} =$
$= 10 \sqrt{18} = 10 \sqrt{9 \cdot 2} = 10 \sqrt{2} \sqrt{9} = 3 \cdot 10 \sqrt{2} = 30 \sqrt{2}$