document.write( "Question 410317: What formula should I use to find the answer to this problem: The base of a 22ft ladder is 8ft from a house. Approximately how far above the ground is the top of the ladder? I drew it and saw that it formed a triangle, but I am not sure if I am supposed to be finding the other side or when I do should I subtract it from 22. \n" ); document.write( "
Algebra.Com's Answer #288567 by josmiceli(19441)\"\" \"About 
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You can use the pythagorean theorem.
\n" ); document.write( "Let \"h\" = vertical height of top of ladder
\n" ); document.write( "\"h%5E2+%2B+8%5E2+=+22%5E2\"
\n" ); document.write( "\"h%5E2+=+22%5E2+-+8%5E2\"
\n" ); document.write( "\"h%5E2+=+484+-+64\"
\n" ); document.write( "\"h%5E2+=+420\"
\n" ); document.write( "\"h+=+20.5\" ft
\n" ); document.write( "check answer:
\n" ); document.write( "\"8%5E2+%2B+20.5%5E2+=+484.25\" close enough
\n" ); document.write( "
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