document.write( "Question 49700: please help!\r
\n" ); document.write( "\n" ); document.write( "Given 2 similar tirangels, Triangle ABC and Triangle DEF, if AB=7 and DE=12 and AC=8, then DF = _____. (round to the nearest tenth.)\r
\n" ); document.write( "\n" ); document.write( "A. 4.7
\n" ); document.write( "B. 13.7
\n" ); document.write( "C. 14.0\r
\n" ); document.write( "\n" ); document.write( "Thank you!
\n" ); document.write( "

Algebra.Com's Answer #33050 by tutorcecilia(2152)\"\" \"About 
You can put this solution on YOUR website!
You are working with similiar triangles which is the same as working with proportions. Compare like-sides:
\n" ); document.write( "7/8 = 12/x
\n" ); document.write( "7x=(8)(12) [Cross-multiply]
\n" ); document.write( "7x=96
\n" ); document.write( "x=13.71
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