Question 817218
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Hi,

The dimensions of rectangle B are twice the dimensions of rectangle A. 
The area of rectangle B is 512cm2.
<img src='http://img585.imageshack.us/img585/479/rectangle.png' border='0'/></a>
{{{A[A] = lw}}}, {{{A[B] = 2l*2w = 4lw}}}
Rectangle B has 4 times the Area as Rectangle A
Rectangle A has a area = {{{512cm^2/4 = 128cm^2}}}