Question

the area of a square is 400 cm² . Find it's perimeter ​

Answer 1

Answer:

Hey perimeter will be 80 I calculated it!!

Step-by-step explanation:

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have a gr8 day dude!!

Answer 2

Answer:

$a ^{2} = 400^{2} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: then \: a \: = \sqrt{400} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: a = 20 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: therefore \: \: \: \: \: \: \: \: perimeter \: of \: he \: square \: = 4 \times a \: \: \: \: \: \: \: \: \: \: = 4 \times 20 = 80cm.$