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Mathematics 11 Online
OpenStudy (anonymous):

Two birds sit at the top of two different trees 57.4 feet away from one another. The distance between the second bird and a bird watcher on the ground is 49.6 feet. What is the angle measure, or angle of depression, between the first bird and the bird watcher? © 2011 Jupiter Images Corporation 30.2° 59.8° 40.8° 49.2°

OpenStudy (anonymous):

OpenStudy (anonymous):

what is the equation for this

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