If a cylinder has a radius of 6 ft and a height of 12.2 ft, what is the surface area? Use 3.14 for P. Select the best answer from the choices provided.
А.
113.04 ft2

B.
459.696 ft2

C.
572.736 ft2

D.
685.776 ft2

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?