Considering the definition of area of a circle, the area of a circle with a radius of 12.2 is 38.308.
Definition of area of a circle
The area is the measure of the region or surface enclosed by a geometric figure. That is, the area is the two-dimensional measurement of a surface and is defined as the space or region that the geometric figure covers.
To calculate the area of a circle you must take into account the radius "r", that is, the distance from the center of the circle to the outside. The expression to apply to calculate the area of a circle is
Area=π×r²
Area of the circle in this case
In this case, you know:
- You use π = 3.14
- Radius "r" is 12.2.
Replacing in the definition of area of a circle:
Area=3.14×(12.2)²
Area= 38.308
Finally, the area of a circle with a radius of 12.2 is 467.3576.