SOLUTION: A 12ft. rope secures a boat to a pier. The boat has an 11ft. horizontal distance from the pier. Assume that the lower end of the rope is at water level. What is the angel formed by

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: A 12ft. rope secures a boat to a pier. The boat has an 11ft. horizontal distance from the pier. Assume that the lower end of the rope is at water level. What is the angel formed by      Log On

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Question 947855: A 12ft. rope secures a boat to a pier. The boat has an 11ft. horizontal distance from the pier. Assume that the lower end of the rope is at water level. What is the angel formed by the rope and the water?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Rope forms the hypotenuse, 12 feet, and horizontal component is 11 feet.

cos%28alpha%29=11%2F12

alpha=arcos%2811%2F12%29