Question

Find the area of square whose side is 20 cm​

Answer 1

Answer:

the formula for area of square is a^2

given a= 20

= 20^2

= 400

therefore the area of square is 400 sq units

hope so it will be useful to you dear friend ☺️

Answer 2

Answer:

Hence the area of a square is $400cm^2.$

Step-by-step explanation:

According to the data given in the question,

It is given that, the side of a square is $20$ cm,

We have to find the area of a square,

Here we have to use the formula of area of a square,

The area is equal to side square, i.e. ${\text } A = a^2$

Where a is the side of the square,

Given: a= $20$ cm,

Substitute the value in the formula of area of a square, we get

${\text } A = (20)^2$

Squaring a number is to multiply the number by itself we get,

${\text } A = 20\times 20$

${\text } A = 400cm^2$

Hence the area of a square is $400cm^2.$