Answer:
12
Explanation:
A square having an area of 9 cm² means it’s side lengths must be equal to √9 which is 3 now to find the perimeter we multiply 3 by 4 as a square has 4 sides:
3×4=12
area is base x height. 3×3 is 9. all sides of a square are equal so 3+3+3+3= the perimeter which is 12.
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