Question

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

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

Answer 1

The correct option is A $xtanB$

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

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