document.write( "Question 221103: the length of a triangle is twice the width. The perimeter is 84 centimeters more than the width. Find the rectangles dimensions. Please help. How do you find this out without knowing the perimeter. Thank you. \n" ); document.write( "
Algebra.Com's Answer #165879 by rfer(16322)\"\" \"About 
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P=2w+2l
\n" ); document.write( "84=2x+2(2x)
\n" ); document.write( "84=6x
\n" ); document.write( "x=14 cm
\n" ); document.write( "2x=28 cm
\n" ); document.write( "
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