document.write( "Question 271201: find the length and width with a ratio of 16:9 of a rectangle that has a 42 inch diagonal \n" ); document.write( "
Algebra.Com's Answer #198598 by dabanfield(803)\"\" \"About 
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find the length and width with a ratio of 16:9 of a rectangle that has a 42 inch diagonal\r
\n" ); document.write( "\n" ); document.write( "Let W be the width and L the length of the rectangle. We know then that:\r
\n" ); document.write( "\n" ); document.write( "16/9 = L/W\r
\n" ); document.write( "\n" ); document.write( "L = (16/9)*W\r
\n" ); document.write( "\n" ); document.write( "Then using the Pythagorean Theorem we have:\r
\n" ); document.write( "\n" ); document.write( "L^2 + W^2 = 42^2 and
\n" ); document.write( "[(16/9)*W]^2 + W^2 = 42^2\r
\n" ); document.write( "\n" ); document.write( "Solve the above for W and then calculate L = (16/9)*W
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