Posted by Susuan on Sunday, April 3, 2011 at 10:24am.
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"Similar" shapes keep the same ratio of side lengths, although the sizes may be different. One is a magnified version of the other.
The Length/Width ratio of each rectangle is the same
In your case, 11/6 = x/5
Solve for the unknown length x, and round to nearest one-tenth cm.
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