document.write( "Question 665721: 3. A 20 ft. ladder is placed against the wall of building the ladder touches the building 12ft from its base. How far is the ladder from the foot of the ladder from the foot of the building? \n" ); document.write( "
Algebra.Com's Answer #414044 by mananth(16946)\"\" \"About 
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The ladder,the floor & the wall form a right triangle.
\n" ); document.write( "The base is one leg The height is the other leg
\n" ); document.write( "The ladder acts as the hypotenuse
\n" ); document.write( "Pythagoras theorem
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\n" ); document.write( "(Hyp)^2= (leg1)^2+ Leg2^2
\n" ); document.write( "Hypotenuse = 20 ft
\n" ); document.write( "leg1= 12 ft
\n" ); document.write( "Leg2= ?
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\n" ); document.write( "leg2^2=hyp^2-leg1^2
\n" ); document.write( "Leg2^2= 20 ^2 - 12 ^2
\n" ); document.write( "Leg2^2= 400 - 144
\n" ); document.write( "Leg2^2= 256
\n" ); document.write( "Leg2= \"sqrt%28256%29\"
\n" ); document.write( "Leg2= 16 ft
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\n" ); document.write( "The ladder touches the ground at a distance of 16 ft from the foot of building
\n" ); document.write( "m.ananth@hotmail.ca
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