<PRE><B>Question 541719</B>
&lt;br&gt;&lt;font face=&quot;Tahoma&quot;&gt;In this case, we need to use the Area formula for a rectangle, and work backwards.&lt;br&gt;

{{{A=l*w}}}&lt;br&gt;

From the given information, we have:&lt;br&gt;

{{{64=4*w}}}&lt;br&gt;

Then just solve for w:&lt;br&gt;

{{{w=16}}}&lt;br&gt;

So the answer would be the width is equal to 16 cm.&lt;br&gt;

To double check:&lt;br&gt;

{{{l*w=4cm*16cm=64cm^2=A}}}&lt;br&gt;

Usually in practice, the length of a rectangle is longer than its width, but the concept is still the same.&lt;br&gt;

I hope this helps!&lt;br&gt;&lt;br&gt;</PRE>