The angle of elevation of the top of a small tree from a point on the ground 300 m away from the foot of the tree was 30°. When the tree grew taller, its angle of elevation became 60° from the same point. By how much did the tree grow?
\(\frac{100}{\sqrt{3}}\) m
200\(\sqrt{3}\) m
\(\frac{200}{\sqrt{3}}\) m
100\(\sqrt{3}\) m