LEARN MATH STEP BY STEP THROUGH VERY EASY PROCESS

CONCEPT OF AREA

__CONCEPT OF AREA -__

**Take some balls. Cover your balcony with these.**

**How many balls do you need to cover the balcony of your house?**

**Now ask you friend to do the same. Who needs more balls? Whose
hand has a larger
surface?**

**Washing a bedsheet takes longer than washing a towel because a bedsheet
has a greater surface area than
a towel.**

**So, by area we mean the flat surface
which you cover or paint.**

**The surface enclosed within the boundary of a figure is called its area.**

**It helps to imagine how much paint would cover the shape.**

__STANDARD UNIT OF AREA -__

**To measure small areas we use a square whose each side is 1 centimeter.**

**The area of this square is 1 square centimeter written as 1 sq cm.**

**To measure big areas, such as area of cricket ground, we use a square whose each side is 1 meter.**

**The area of this square is 1 square meter written as 1 sq m.**

**Bigger areas are measured in square kilometer.**

**Area by Counting Squares -**

**We can also put the shape on a grid and count the number of squares:**

**The rectangle has an area of 15.**

**Example: When each square is 1 meter on a side, then the area is 15 m² (15
square meters)**

**Be careful to say "square meters".**

**There are also "square mm", "square dm"
etc,.**