Finding area by counting squares

We know that

  Area is surface inside the figure

But how do we find the area?

We consider a squared paper like this

In this squared paper,

We make a rectangle like

To find area, we count the squares inside the rectangle

Number of square = 15

So, Area = 15 square units

Here,

Area will be equal to number of squares

But what does square units means?

In our figure

Unit means the size of 1 square

Unit can be anything,

  cm

  m

  km

Now,

Square units means

While calculating area by counting squares,

we follow these rules

• If area is less than half square, ignore it (take it 0)
• If area is more than half square, take it 1 square unit
• If area is exactly half square, take 1/2 square unit

Let’s solve some examples

Let’s find area of this square

Now,  we count the squares

Number of squares = 25

So,

      Area = 25 square units

Area of Circle

Let’s find area of circle

So,

Area = 4 + 8 + 2

        = 14 Square units

Area of Pentagon

So,

     Area = 4 + 4 + 0

             = 8 Square units