Answer:
686π m² . . . . . looks like it is intended to match B
Step-by-step explanation:
The lateral area is the product of the height and circumference:
LA = (42 m)(1/3·42 m)π = 588π m² ≈ 1847 m²
The base area is the area of the end circles, which is twice the area of one of them. That is ...
BA = 2·(π/4)(1/3·42 m)² = 98π m² ≈ 309 m²
Then the total surface area is ...
A= LA + BA = (588π +98π) m² = 686π m² ≈ 2155 m²
