document.write( "Question 1143133: here is link to a picture with the question since I cannot draw the triangle
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\n" ); document.write( "this is linked to question 753150
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Algebra.Com's Answer #763906 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
Two similar triangles if DE is parallel to BC.\r
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\n" ); document.write( "\n" ); document.write( "\"DE%2F40.7=25%2F%2825%2B16.7%29\"
\n" ); document.write( "and solve this for DE.\r
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\n" ); document.write( "\n" ); document.write( "You should be able to figure how to solve for EC.
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