To find the perimeter (P) of a square (S) with an area (a) of 420 cm^2, we first need to find the length of one side of the square.
Given that the area of the square is equal to the side length squared, we can find the side length (s) by taking the square root of the area:
s = √420s ≈ 20.49 cm
Now that we have the side length, we can find the perimeter of the square by multiplying the side length by 4 (since a square has four equal sides):
P = 4sP = 4(20.49)P ≈ 81.96 cm
Therefore, the perimeter of the square with an area of 420 cm^2 is approximately 81.96 cm.
To find the perimeter (P) of a square (S) with an area (a) of 420 cm^2, we first need to find the length of one side of the square.
Given that the area of the square is equal to the side length squared, we can find the side length (s) by taking the square root of the area:
s = √420
s ≈ 20.49 cm
Now that we have the side length, we can find the perimeter of the square by multiplying the side length by 4 (since a square has four equal sides):
P = 4s
P = 4(20.49)
P ≈ 81.96 cm
Therefore, the perimeter of the square with an area of 420 cm^2 is approximately 81.96 cm.