David is looking out of his window at the office building 40 feet away across the street from him.  He determines that the angle of elevation to the top of the building is 62∘ and the angle of depression to the bottom of the building is 55∘.  How tall, to the nearest foot, is the office building?

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A: NOTE: Refresh your page if you can't see any equations. . here we have AB=95 BC=x C=6