Mathematics, 14.01.2020 22:31, penny3109

Aboat is sighted from a 50-meter observation tower on the shoreline at an angle of depression of 4 degrees moving directly towards the shore at a constant speed. five minutes later the angle of depression of the boat is 12 degrees. what is the speed of the boat in kilometers per hour?

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Aboat is sighted from a 50-meter observation tower on the shoreline at an angle of depression of 4 d...