A bird (B) is spotted flying 5,000 feet from a tree (T). An observer (O) spots the bird (B) at a distance of 13,000 feet. What is the angle of depression from the bird (B) to the observer (O)?
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a window is in the shape of a reactangle of length 4 feet and wide 3 feet surrounded by a triangle of 4 feet each side. find the total area of window which allows light and fresh air in the house?ui
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