document.write( "Question 370117: I have a 3ft long plank that needs to be changed to a 45 degree ramp. How do I calculate the height needed. nofn@msn.com
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Algebra.Com's Answer #263778 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Let x be the height
\n" ); document.write( "sin45° = opp/hyp
\n" ); document.write( "sin45° = x/3ft
\n" ); document.write( "3ft*sin45° = x
\n" ); document.write( "2.121ft = x \n" ); document.write( "
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