KuttersFormulaCalculator

How to Use the Calculator

1. Enter the radius of the circle in the input field labeled "Radius (r)". Ensure you enter a numeric value.
2. Click the "Calculate" button to compute the area of the circle.
3. The calculated area will be displayed in the "Area (A)" field.
4. Click the "Reset" button to clear all input fields and results.

Working Principle

The calculator uses the formula for the area of a circle, which is \( A = \pi r^2 \). Here, \( \pi \) is a mathematical constant approximately equal to 3.14159, and \( r \) is the radius of the circle.

Example

If the radius of a circle is 5 units, the area can be calculated as follows:

Area = π * 5² = π * 25 ≈ 3.14159 * 25 ≈ 78.54 square units.