1. The problem is to find the area of a circle given the radius. 2. The formula for the area of a circle is $$A = \pi r^2$$ where $r$ is the radius. 3. Given the radius $r = 2.7$, substitute into the formula: $$A = \pi (2.7)^2$$ 4. Calculate the square of 2.7: $$2.7^2 = 7.29$$ 5. So the area is: $$A = \pi \times 7.29$$ 6. Using $\pi \approx 3.1416$, multiply: $$A \approx 3.1416 \times 7.29 = 22.902264$$ 7. Therefore, the area of the circle with radius 2.7 is approximately 22.90 square units. 8. Similarly, for radius $r = 4.45$, the area is: $$A = \pi (4.45)^2 = \pi \times 19.8025 \approx 3.1416 \times 19.8025 = 62.204$$ 9. The area of the circle with radius 4.45 is approximately 62.20 square units.