he building and birds line of sight to the treat is 78°. If the treat is located 12 feet from the building, how high is the bird located to the nearest tenth of a foot?

Answer 1

Represents the building as a rectangle.

The bird on the top left corner of the building looking down at the treat 78 degrees

below the horizontal. Then the complement is 12 degrees. So tan 12 = 12/h where

h is the height of the building. Therefore h = 12/tan 12 = 56.45556131374145...

or 56.5 to the nearest tenth.