Question

What is the area of a handkerchief $40$cm square?

Answer 1

Hint: In this problem, we have to find the area of the handkerchief. And the handkerchief in the shape of a square. First, we want to know the formula for the area of the square. Applying the formula and using the data we can find the area of the given handkerchief.
The formula used in the problem:
In the given problem we used the formula given below.
That is the area of the square $ = {a^2}{\kern 1pt} {\kern 1pt} {\kern 1pt} {\kern 1pt} c{m^2}$
Here $a$ is equal to the length of the one side.

Complete step by step answer:
In this problem, we are going to find the area of the given handkerchief.
First we want to know the data given in the problem.
The given data are,
Find the area of the handkerchief.
And the given handkerchief is in the shape square.
And the length of the square on one side is forty centimeters.
The square is the basic shape.
And it has four sides.
In the square, the four sides have equal length.
It has not only four equal sides but also four equal angles.
It is also said that the rectangle.
Because the length of the adjacent sides of the square is the same.
We have to find the area of the square.
The area is defined as the total number of unit squares in the given shape.
In the square shape, the area is the product of the two sides.
We know the length of the given square. That is forty centimeters.
Now, the area of the given square is forty multiplied by forty.
We can write this as, \[A = 40 \times 40\]
Now simplify this, we get thousand and six hundred. That is \[A = 1600c{m^2}\]
Therefore the area of the given handkerchief is \[A = 1600c{m^2}\]

Note:
In the square, all the sides have the same length. And in the square, all the sides have an equal angle. The area is defined as the total number of unit squares in the given shape. And the area of the square is defined as the number of square units is needed to fill the square.