Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Maria
Maria asked in Science & MathematicsEngineering · 9 years ago

The diameter of a construction pipe is 5ft?

. If the pipe is 20ft long, what is its volume? (Use the value for 3.14 for pi, and round your answer to the nearest cubic foot. Be sure to include the correct unit in your answer.)

3 Answers

Relevance
  • biire2u
    Lv 7
    9 years ago
    Favourite answer

    Donpat is right

    Area of a circle = radius squared * 3.14

    area = 2.5 ft ^2 * 3.14 = 19.63 sq ft

    cylinder length = 20 ft

    cylinder volume = area * length

    19.63 ft^2 * 20 ft = 393 ft^3 , which is 393 cubic feet

  • spot a
    Lv 7
    9 years ago

    3.14 * 5 * 20 = 314 cubic feet

  • ?
    Lv 7
    9 years ago

    You have:

    --------------------------------------------

    V = ( AF ) ( L ) = ( pi /4 ) ( D^2 ) ( L )

    V = ( 3.14 / 4 ) ( 5^2 ) ( 20 )

    V = 393 cu. ft. <--------------------------------------------

Still have questions? Get answers by asking now.