SOLUTION: Eight 3inch squares tiles are placed end to end to make a rectangle. What is the distance around the rectangle they form?

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Question 214001: Eight 3inch squares tiles are placed end to end to make a rectangle. What is the distance around the rectangle they form?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
there are 2 corner tiles, and they each have
3 sides which are on an outside edge
2%2A3+=+6 sides
that leaves 8+-+2+=+6 tiles, each of which
has only 2 sides on an outside edge
6%2A2+=+12 sides
There are 6+%2B+12+=+18 3" sides on the outside
of the rectangle
18%2A3+=+54
There are 54 inches around the rectangle