What is the measure of the smallest angle in the diagram 15 29 32

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

How to simply and write the answer n a whole number