1. The problem is to find the area of a circular park given its radius. 2. The formula for the area $A$ of a circle is $$A = \pi r^2$$ where $r$ is the radius. 3. To solve, substitute the given radius value into the formula. 4. For example, if the radius $r$ is 10 units, then $$A = \pi \times 10^2 = 100\pi$$ square units. 5. This gives the area of the circular park as $100\pi$ square units, which is approximately 314.16 square units when $\pi \approx 3.1416$.