Let a vertical tower AB have its end A on the level ground
Question:

Let a vertical tower $\mathrm{AB}$ have its end $\mathrm{A}$ on the level ground. Let $\mathrm{C}$ be the mid-point $\tan \beta$ is equal to :-

1. $\frac{4}{9}$

2. $\frac{6}{7}$

3. $\frac{1}{4}$

4. $\frac{2}{9}$

Correct Option: , 4

Solution: