$\sqrt{0,02}=\sqrt{0,01}\cdot \sqrt{2}=0,1\sqrt{2}\approx 0,1\cdot 1,4=0,14B$ $\sqrt{0,02}=\sqrt{0,01}\cdot \sqrt{2}=0,1\sqrt{2}\approx 0,1\cdot 1,4=0,14B$

$\sqrt{300}=\sqrt{100}\cdot \sqrt{3}=10\sqrt{3}\approx 10\cdot 1,7=17B$