The area of the circle is, in fact, the surface that is "enclosed" within the perimeter of the circumference. It is calculated by raising the radius of the circumference $R$ to the second power and multiplying the result by -> $π$. The area of the circle is usually denoted by the letter $A$.

**The formula to calculate the area of a circle is:**

**$A=\pi\times R\times R$**

$A$ -> area of the circle

$\pi–>PI=3.14$

$R$ -> Radius of the circumference

**In problems that include the radius** - We will use the radius in the formula.**In problems that include the diameter** - We will divide it by $2$ to obtain the radius and, only then, place the radius in the formula.**In problems that include the area and ask to find the radius** - We will place the area in the formula and find the radius.