An airplane pilot over the Pacific sights an atoll at an angle of depression of 10°. At this time, the horizontal
distance from the airplane to the atoll is 5,172 meters

Question

An airplane pilot over the Pacific sights an atoll at an angle of depression of 10°. At this time, the horizontal
distance from the airplane to the atoll is 5,172 meters

anonymous · Answer

An airplane pilot over the Pacific sights an atoll at an angle of depression of 10°. At this time, the horizontal. distance from the airplane to the atoll is 5,172 meters.

What is the height of the plane to the nearest meter

anonymous · Answer

@phi @pooja195 @Hero @DarkMoonZ

phi · Answer

the dotted line is parallel to the "bottom" line 
|dw:1438957666407:dw|