Question

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Find the perimeter of the following shape

Answer 1

Perimeter just means the total distance of all sides. So you have to add up all those sides:

2xy+(2x+y)+(3xy+y)+(3xy+y)+(2x+y)

You can only combine expressions with the same set of variables, so:

8xy+4x+4y

If you wanted, you could distribute out the same terms:

4(2xy+x+y)