Question

The radius of a cylindrical construction pipe is 2 ft. If the pipe is 17 ft long, what is its volume?

Use the value 3.14 for it, and round your answer to the nearest whole number.

Answer 1

V = 106.76ft

Explanation:

Cylinder Formulas in terms of r and h

• Calculate the volume of a cylinder: V = πr2h

• Calculate the lateral surface area of a cylinder (just the curved outside)**: L = 2πrh

• Calculate the top and bottom surface area of a cylinder (2 circles): T = B = πr2

• Total surface area of a closed cylinder is: A = L + T + B = 2πrh + 2(πr2) = 2πr(h+r)

Answer 2