29. Five mark exercise problem V

From the top of the tower \(60 \ m\) high the angles of depression of the top and bottom of a vertical lamp post are observed to be \(38^{\circ}\) and \(60^{\circ}\) respectively. Find the height of the lamp post. (\(tan \ 38^{\circ} = 0.7813\), \(\sqrt{3} = 1.732\))

 

Answer:

 

The height of the lamp post is  .

 

(Note: Enter the number in the first box and the unit (short form) in the second box.)