Answer:
π ft² ≈ 3.142 ft²
Explanation:
The end of a cylinder is a circle. The formula for the area of a circle is ...
A = πr²
where r is the radius of the circle. Since the radius is half the diameter, the lid has a radius of (1/2)(2 ft) = 1 ft, and the area is ...
A = π(1 ft)² = π ft² ≈ 3.142 ft²