## Area of 2D Shapes

The **area** of a two-dimensional shape is the amount of space it takes up. It is measured in square units, such as square centimeters (cm²) or square inches (in²).

Here are the formulas for calculating the area of some common 2D shapes:

**Rectangle**

The area of a rectangle is calculated by multiplying its length and width.

**Area = Length x Width**

**Square**

A square is a special type of rectangle where all sides are equal. Therefore, the area of a square is calculated by squaring the length of one side.

**Area = Side x Side = Side²**

**Triangle**

The area of a triangle is calculated by multiplying half of its base by its height.

**Area = (1/2) x Base x Height**

**Circle**

The area of a circle is calculated by multiplying pi (π) by the square of its radius.

**Area = π x Radius²**

Where π is approximately equal to 3.14159.

**Parallelogram**

The area of a parallelogram is calculated by multiplying its base by its height.

**Area = Base x Height**

**Trapezoid**

The area of a trapezoid is calculated by multiplying half of the sum of its parallel sides by its height.

**Area = (1/2) x (Base₁ + Base₂) x Height**

**Kite**

The area of a kite is calculated by multiplying half of the product of its diagonals.

**Area = (1/2) x Diagonal₁ x Diagonal₂**

**Rhombus**

The area of a rhombus is calculated by multiplying half of the product of its diagonals.

**Area = (1/2) x Diagonal₁ x Diagonal₂**

**Note:** The diagonals of a rhombus are perpendicular bisectors of each other.

**Understanding Area**

Understanding area is important in many real-world applications, such as:

**Construction:**Calculating the amount of materials needed for a project.**Gardening:**Determining the amount of space available for planting.**Interior Design:**Planning the layout of furniture and other objects.**Mapmaking:**Representing the size of geographical areas.

By using the appropriate formulas, you can easily calculate the area of any 2D shape.