Two birds sit at the top of two different trees. The distance between the first bird and a birdwatcher on the ground is 29.7 feet. The distance between the birdwatcher and the second bird is 42.1 feet. What is the angle measure, or angle of depression, between this bird and the birdwatcher?

Two trees that are 29 point 7 feet tall with a bird on top of each. Distance between birdwatcher and first bird is 42 point 1 feet. Angle of depression between birdwatcher and first bird is unknown.

45.1°
44.9°
54.8°
35.2°