document.write( "Question 847592: triangle rst is similar to triangle abc. if the perimiter of triangle rst is 28 inches, determine the length of tr.\r
\n" ); document.write( "\n" ); document.write( "Ab = 7 in, bc = 5 in, ca = 9 in\r
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\n" ); document.write( "\n" ); document.write( "Thanks!
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Algebra.Com's Answer #510569 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi,
\n" ); document.write( "Perimeter of abc is 21in \"28%2F21+=+4%2F3\"
\n" ); document.write( "\"4%2F3=+tr%2F9\" | Cross Multiplying to solve
\n" ); document.write( " tr = 36/3 = 12in \n" ); document.write( "
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