1. The problem is to find the area of a circle with radius 5. 2. The formula for the area of a circle is $$A = \pi r^2$$ where $r$ is the radius. 3. Substitute $r = 5$ into the formula: $$A = \pi \times 5^2$$ 4. Calculate the square of 5: $$5^2 = 25$$ 5. So the area is: $$A = \pi \times 25 = 25\pi$$ 6. The area of the circle is $25\pi$ square units.