Answer:
The perimeter is 4c - 4
Explanation:
We will use the Rectangle Perimeter formula:
P = 2(l + w)
Given:
l = c
w = c - 2
Now, we just plug them into the formula:
P = 2(c + c - 2)
P = 2(2c - 2)
P = 4c - 4
2 · c + 2 · (c - 2) =
= 2c + 2c - 4 = 4c - 4 ← the end
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