document.write( "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? \n" ); document.write( "
Algebra.Com's Answer #578451 by josgarithmetic(39617)\"\" \"About 
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Rope forms the hypotenuse, 12 feet, and horizontal component is 11 feet. \r
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\n" ); document.write( "\n" ); document.write( "\"cos%28alpha%29=11%2F12\"\r
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\n" ); document.write( "\n" ); document.write( "\"alpha=arcos%2811%2F12%29\"
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