Area of a circle
A=pi*(r^2)
The formula for the area of a circle is:
A = πr²
Where A is the area and r is the radius of the circle. π (pi) is a mathematical constant that has a value of approximately 3.14159.
To use this formula, you need to know the radius of the circle. The radius is the distance from the center of the circle to any point on its edge.
To find the area of a circle, follow these steps:
1. Measure the radius of the circle
2. Square the radius by multiplying it by itself
3. Multiply the squared radius by π
4. Round the answer to the desired number of decimal places
For example, if the radius of a circle is 5 cm, the area would be:
A = πr²
A = π(5)²
A = π(25)
A = 78.54 cm² (rounded to two decimal places)
Therefore, the area of a circle with a radius of 5 cm is approximately 78.54 cm².
More Answers:
Discover How to Calculate the Volume of a Rectangular Box with a Formula | Example IncludedHow to Recognize Multiples of 6 Using Divisibility Rules – A Guide on Identifying Numbers Divisible by 2 and 3
How to Easily Find the Perimeter of a Rectangle with Formula & Example