A water tank is in the shape of a right circular cylinder. The diameter is 8 feet, and the height is 21.5 feet. Find the surface area of the water tank. Use 3.14 for π .(1 point)
640.16
feet2
The surface area of a cylinder can be calculated using the formula:
Surface Area = 2 π r (r + h)
First, we need to calculate the radius using the diameter:
r = 8 feet / 2 = 4 feet
Now we can plug in the values:
Surface Area = 2 * 3.14 * 4 (4 + 21.5)
Surface Area = 25.12 * 25.5
Surface Area = 640.16 feet2
Therefore, the surface area of the water tank is 640.16 feet2.