Question

The area of square is 400cm2 . find perimeter plz say right ans​

Answer 1

$\huge \mathcal {\fcolorbox{red}{gray}{\green{A}\pink{N}\orange{S}\purple{W}\red{E}\blue{R}{!}}}$

By using this formula,

P = 4 √ A

• Substitute the value in the formula
• P = 4 √400
• P = 4 × 20
• P = 80cm

So the perimeter of square is 80cm.

Answer 2

• The perimeter of Square is 80 cm.

Step-by-step explanation:

Given:-

• Area of square = 400cm²

To Find:-

• It's Perimeter

Formula used:-

• Area of Square = (Side)²

• Perimeter of Square = 4 × Side

Solution:-

$Area \:of\: Square\: =\: (Side)²$

$400\: =\: (Side)²$

$Side\: =\: \sqrt{400}$

${\boxed{\red{Side\: =\: 20\:cm}}}$

Now,

$Perimeter \:of\: Square\: = \:4×Side$

$Perimeter \:of\: Square\: = \:4×20$

${\boxed{\red{Perimeter \:of\: Square\: = \:80\:cm}}}$

Hence, The Perimeter of given Square is 80 cm.

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