document.write( "Question 1163640: a 20 ft ladder is placed against a building so that the foot of the ladder is 12 ft. from the foot of the building. How high up the building does the ladder reach in feet? \n" ); document.write( "
Algebra.Com's Answer #787798 by josgarithmetic(39618)\"\" \"About 
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Horizontal leg 12 feet
\n" ); document.write( "Hypotenuse 20 feet
\n" ); document.write( "Vertical leg, unknown; this triangle is a right triangle. You know what to do.
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