Question

6) The area of a square is 400 sqm. Find its perimeter.​

Answer 1

Given :

⬤ Area of Square is 400 m² .

To Find :

⬤ Perimeter of Square .

Formula Used :

First , We have to Calculate Side of the Square . Hence ,

$\bf[\:{Area\:of\:Square={Side}^{2}}\:]$

Solution :

According to the Formula :-

400 = (Side)²

√400 = Side

20 = Side

Therefore , The Side of the Square is 20 m .

Formula Used :

$\bf[\:{Perimeter\:of\:Square=4\times{Side}}\:]$

Now :

According to the Formula :-

4 × Side

4 × 20

80

Therefore , The Perimeter of Square is 80 m .

Answer 2

GIVEN:

• Area of square=400cm²

TO FIND:

• Perimeter of square

SOLUTION:

First we have to calculate side of square before calculating perimeter.

To find the side we have apply formula.

$\underline{ \boxed{ \sf \blue{✯Area \: of \: square=side {}^{2} }}}$

$\sf : \implies \: \: \sqrt{ 400cm {}^{2}} = {side}^{2}$

$\sf : \implies \: \: 20cm = side$

$\sf \underline{ \boxed{ \sf \pink{✯Perimeter \: of square=4×Side}}}$

$\sf : \implies \: \: 4 \times 20cm$

$\sf : \implies \: \: 80cm$

So perimeter of square=80cm.