Question

A point B on the level ground is x m away from the foot of a h meter tall tower. If the angle of elevation of the top of the tower from the point B is B°, then the height of the tower is ______ m.

• A. x $\tan$B
• B. $\frac{x}{\tan B}$
• C. $\frac{\tan B}{x}$
• D. none of these

Answer 1

The correct option is A

x $\tan$B

$\tan$ B = $\frac{h}{x}$

$\Rightarrow$ h = x $\tan$ B