Question

the area of a aquare is 400 m² the length of its each side is​

Answer 1

Answer:

20 units

Step-by-step explanation:

Given a square has an area of 400 square miles.

Let A be the length of each side of the square.

We know that area of the square is A2 sq. units

Let us equate A2 with 400 sq. units

⇒ A2 = 400

⇒ A = 20 units

Therefore, the length of the side of the square is 20 units.

Answer 2

Answer:

Length of each side of square is $20$ m.

Step-by-step explanation:

To find : side of square

Given : area of square is $400\ m^{2}$ .  

Solution :

• As per given data we know that , area of square is $400\ m^{2}$ .
• We know that all four sides of square are equal .
• If ' $a$ ' is the side of square then area of square is given by,
• Area of square $= a^{2}$
• Therefore, by substituting the value in above formula we find side of square .

• Area of square $= a^{2}$

                           $400 = (a) ^{2}\\\\\sqrt{a^{2} } =\sqrt{400} \\\\a = 20\ m$