Answer:
A= 19,63 units.
Explanation:
The area of a circle is given by π r^2. Where "r" represents de radius.
In this case we know that de diameter is 5 units. Given that the radius is half of the diameter, then r=5/2 = 2.5 units.
Then the area of a circle is:
A= π r^2 = π (2.5 units)^2 = 19,63 units.