Question

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)

feet

Answer 1

[AI-generated answer — Bot GPT 3.5]

The surface area of a cylinder can be calculated using the formula: 2πr² + 2πrh, where r is the radius of the cylinder and h is the height.

Given that the diameter is 8 feet, the radius (r) is half of the diameter, so r = 8/2 = 4 feet.

Plugging in the values, we get:
Surface Area = 2(3.14)(4)² + 2(3.14)(4)(21.5)
Surface Area = 2(3.14)(16) + 2(3.14)(86)
Surface Area = 100.48 + 539.92
Surface Area = 640.40 square feet

Therefore, the surface area of the water tank is 640.40 square feet.