A ladder 20ft long leans against a vertical building. If the bottom of the ladder slides...
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A ladder 20ft long leans against a vertical building. If the bottom of the ladder slides away from the building horizontally at a rate of 2ft/sec, at what rate is the angle between the ladder and the ground changing when the top of the ladder is 12ft above the ground? A ladder 20ft long leans against a vertical building. If the bottom of the ladder slides away from the building horizontally at a rate of 2ft/sec, at what rate is the angle between the ladder and the ground changing when the top of the ladder is 12ft above the ground?
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