Final answer:
The area of a circle with a diameter of 10 units is 25π square units.
Step-by-step explanation:
The area of a circle can be found using the formula A = πr2, where A is the area and r is the radius. Since the diameter is given, we need to divide it by 2 to get the radius. In this case, the diameter is 10 units, so the radius will be 10/2 = 5 units.
Substituting the value of the radius into the formula, we get A = π(5)2 = 25π square units.
So, the area of the circle with a diameter of 10 units is 25π square units.