Answer:
60cm
Explanation:
20/4 = 5
one side of the square = 5cm
l (length) = 4 squares
w (width) = 2 squares
p (perimeter) = 2(5l) + 2(5w)
p = 2 x 20 + 2 x 10
p = 40 + 20
p = 60
above is the solution to the question
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