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 #263776 by CharlesG2(834)\"\" \"About 
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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\r
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\n" ); document.write( "\n" ); document.write( "ramp looking from the side will be a right triangle,
\n" ); document.write( "with the hypotenuse being 3 ft,
\n" ); document.write( "the side opposite to the 45 degree angle of the ramp is the height,
\n" ); document.write( "the side adjacent to the 45 degree angle of the ramp is the length or base of the ramp
\n" ); document.write( "remember sohcahtoa:
\n" ); document.write( "sine = opposite/hypotenuse, cosine = adjacent/hypotenuse
\n" ); document.write( "tangent = opposite/adjacent
\n" ); document.write( "sin 45 = opp/hyp = height/3
\n" ); document.write( "3sin 45 = height
\n" ); document.write( "3 * sqrt(2)/2 = height
\n" ); document.write( "(3/2)sqrt(2) = height
\n" ); document.write( "2.12 ft rounded to the nearest hundredth = height
\n" ); document.write( "0.12 ft * 12 inches per foot = 1.44 inches
\n" ); document.write( "so height is approximately 2 feet and 1 inch\r
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