Question

Over a tower $AB$ of height $hmt$, there is a flag staff $BC,AB$ and $BC$ makes equal angles at a point distant ${}^{\prime }{d}^{\prime }mt$ from the foot $A$ of the tower. The height of the flag staff is

• A. $\frac{h(d^2+h^2)}{(d^2-h^2)}mt$
• B. $\frac{h(d^2-h^2)}{(d^2-h^2)}mt$
• C. $\frac{h(d^2-h^2)}{(d^2+h^2)}mt$
• D. $\frac{h(d^2+h^2)}{(d^2+h^2)}mt$

Answer 1

The correct option is A $\frac{h(d^2+h^2)}{(d^2-h^2)}mt$