what is the area of a circle

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Pie r squared

The area of a circle can be found using the formula:

Area = π * r^2

where π (pi) is a mathematical constant approximately equal to 3.14159, and r is the radius of the circle.

To calculate the area of a circle, you need to know the value of the radius. The radius is the distance from the center of the circle to any point on its edge. Once you have the radius value, follow these steps:

1. Square the value of the radius by multiplying it by itself.
2. Multiply the squared value by π (pi). You can use the exact value of π or a decimal approximation, depending on the desired level of accuracy.
3. The result obtained in step 2 is the area of the circle in square units.

For example, if the radius of a circle is 5 units, the calculation would be:

Area = π * 5^2

Area = 3.14159 * 25

Area ≈ 78.54 square units

So, the area of a circle with a radius of 5 units is approximately 78.54 square units.