The perimeter of a shape is the sum of its side lengths
The expressions for the perimeter of the frame are 4(l + 2) and 4l + 8
The side length of the frame is given as l
So, the perimeter of the frame is
:[tex]P = 4l[/tex]
When 2 inches are added to each length, the perimeter of the frame becomes
[tex]P =4(l + 2)[/tex]
Expand
[tex]P =4l + 8[/tex]
Hence, the expressions for the perimeter of the frame are 4(l + 2) and 4l + 8
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