Question

If the area of square is 400 cm. Find the perimeter

Answer 1

Solution :-

It is given in the question that,

Area of square = 400 cm

As we know that,

Area of square = 4 * Side

Let the side of the square be x

Put the required values,

400 = x * x

400 = x^2

x = √ 20 * 20

x= 20cm

Thus, The value of x is 20cm that is the side of square.

Now, we have to find the perimeter of the square

We know that,

Perimeter of square = 4 * Side

Perimeter of square = 4 * 20

Perimeter of square = 80 cm^2

Hence, The perimeter of the square is 80cm^2 $.$

Some related formulas :-

• Area of rectangle = Length * Breath

• Perimeter of rectangle = 2( L + B)

•Area of triangle = 1/2 * base * height

• Perimeter of triangle

= Side + Side + side

• Area of trapezium = 1/2 ( a + b)h

• Perimeter of trapezium

= a + b + c + d

Answer 2

$\huge{\bf{\green{\mathfrak{Question:-}}}}$

• If the area of square is 400 cm². Find the perimeter.

$\huge {\bf{\orange{\mathfrak{Answer:-}}}}$

• $\sf{Area \: of \: square \: = \: 400 \: cm^{2}.}$

• $\sf{s^{2} \: = \: 400}$

• $\sf{s \: = \: \sqrt{400}}$

• $\boxed{\therefore{\sf{s \: = \: 20 \: cm.}}}$

• $\boxed{\sf{Perimeter \: of \: square \: = \: 4s.}}$

• $\sf{4 \: * \: 20}$

• $\boxed{\therefore{\sf{80 \: cm.}}}$

$\huge{\bf{\red{\mathfrak{Conclusion:-}}}}$

• $\boxed{\therefore{\sf{Perimeter \: of \: square \: = \: 80 \: cm.}}}$