A plane is in line with a 1200m landing strip. The pilot measures the angles of depression of
the ends of the strip to be 15.8º and 11.5º. How high up is the plane AND how far is it
horizontally from the nearer end of the strip?

Question

A plane is in line with a 1200m landing strip.  The pilot measures the angles of depression of 
     the ends of the strip to be 15.8º and 11.5º.  How high up is the plane AND how far is it 
     horizontally from the nearer end of the strip?

kesumonu · Answer

i think ans should be:
height :  868.7869 m
horizontal distance: 3070.2279 m