Answer:
The area of a circle can be calculated with the following formula
A = π(radius)²
Where π is approximately 3.14.
So, for example, if we have a circle of radius 3 units, the area of the circle will be
A = 3.14(3)²
A = 3.14(9)
A = 28.26
Then, the area of a circle with radius of 3 units is 28.26 square units