# Area of Sector Calculator

## How to use Area of Sector Calculator?

Step1:- At first Input the Radius of sector (r) in Area of Sector Calculator.

Note* Choose the unit of measurement for the radius from the dropdown list next to it (in meters, feet, centimeters, or inches).

Step2:- Now Input the Central Angle (θ):
Enter the central angle of the sector in degrees (the angle formed between the two radii at the center of the circle). The value should be between 0 to 360 degrees.

Step3:- Click the “Calculate” Button:
Once you have entered all the required values, click the “Calculate” button.

Step5:- Finally you will be able to View the Results of Area of Sector Calculator.
The calculator will display the area of the sector in the following units:
Square meters
Dhur (a unit of area used in Nepal)
Aana (another unit of area used in Nepal)
Square feet

## Numerical to calculate Area of Sector of circle

To calculate the area of a sector of a circle, we can use the following formula:

Area of Sector= (360/θ​) × π × r2

Where:

• θ is the central angle in degrees.
• r is the radius of the circle.
• 𝜋 is approximately 3.14159.

Where:

• θ is the central angle in degrees.
• (r) is the radius of the circle.
• 𝜋 is approximately 3.14159.

Given:

• Radius ((r)) = 21 feet
• Central angle (θ) = 70 degrees

Let’s use these values into the formula:

Area of Sector= (360/θ​) × π × r2

= 360/70 x 3.14159 x 212

=0.1944×π×441

Using, 𝜋≈3.14159

Area of Sector≈0.1944×3.14159×441

Area of Sector≈269.52 square feet

Thus, the area of the sector is approximately 269.52 square feet.

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"Structural Engineer" with over 5 years of experience in estimation, structural design, and surveying. I am passionate about using my skills to create safe and sustainable structures. I am also a keen writer, and I enjoy sharing my knowledge and experiences with others.