Area Truck Ring A987B1

1. **State the problem:** We need to find the area of a truck shaped like a circular ring (annulus) with an inner radius of $58$ years and an outer radius of $63$ years. 2. **Formula used:** The area $A$ of a circular ring (annulus) is given by the difference between the area of the outer circle and the inner circle: $$A = \pi (R^2 - r^2)$$ where $R$ is the outer radius and $r$ is the inner radius. 3. **Substitute the values:** $$A = \pi (63^2 - 58^2)$$ 4. **Calculate the squares:** $$63^2 = 3969$$ $$58^2 = 3364$$ 5. **Subtract the squares:** $$3969 - 3364 = 605$$ 6. **Calculate the area:** $$A = \pi \times 605$$ 7. **Final answer:** The area of the truck is $$A = 605\pi$$ square years (units as given).