Area of a Circle
The area of a circle is the measure of the surface enclosed by a circle
The area of a circle is the measure of the surface enclosed by a circle. It is denoted by the letter “A”. The formula to calculate the area of a circle is:
A = π × r^2
Where:
– A represents the area of the circle
– π (pi) is a mathematical constant that is approximately equal to 3.14159
– r is the radius of the circle (the distance from the center of the circle to any point on its circumference)
To find the area of a circle, you need to square the radius and then multiply it by π. The squared radius represents the area of the square whose side length is equal to the radius of the circle.
For example, let’s say we have a circle with a radius of 5 units. To find its area, we can use the formula:
A = π × (5^2) = 3.14159 × 25 ≈ 78.54 square units
Therefore, the area of the circle is approximately 78.54 square units.
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