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Mathematics, 13.11.2020 06:50 igompers

Debbie Maybury, a whale researcher standing at the top of a tower, is watching a whale approach the tower directly. When she first begins watching the whale, the angle of depression to the whale is 15° 50'. Just as the whale turns away from the tower, the angle of depression is 35° 40'. If the height of the tower is 68.7m, find the distance traveled by the whale as it approaches the tower.

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