document.write( "Question 1029298: Two similar figures have areas of 56 sq in and 87 sq in. A side of the smaller figure is 12 in. Find the corresponding side. \n" ); document.write( "
Algebra.Com's Answer #644354 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
You could choose something more specific just for comfort.\r
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\n" ); document.write( "\n" ); document.write( "Imagine you have rectangles. One is length 12 and the other is unknown length, but you are given the rectangles are similar.\r
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\n" ); document.write( "\n" ); document.write( "SMALL Rectangle
\n" ); document.write( "dimensions 12 and x
\n" ); document.write( "\"12x=56\"\r
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\n" ); document.write( "\n" ); document.write( "LARGE Rectangle
\n" ); document.write( "dimensions 12k and kx
\n" ); document.write( "; the k because this is a proportionality constant, because the length of the rectangles ARE IN PROPORTION because the two rectangles ARE SIMILAR.
\n" ); document.write( "\"12k%2Akx=87\"\r
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\n" ); document.write( "\n" ); document.write( "Goal is to find 12k, which is the length for the corresponding side on the larger rectangle.
\n" ); document.write( "The system to solve is this:
\n" ); document.write( "\"system%2812x=56%2C12x%2Ak%5E2=87%29\"
\n" ); document.write( "from which you should see the substitution to do;
\n" ); document.write( "\"56%2Ak%5E2=87\"
\n" ); document.write( "\"k=sqrt%2887%2F56%29\"\r
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\n" ); document.write( "\n" ); document.write( "The corresponding side length on the larger figure is \"12%2Asqrt%2887%2F56%29\"; and you could rationalize the denominator and simplify if you want.
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