Ask Question
21 March, 01:01

What is the surface area of the cylinder? The diameter is 18ft and the height is 12ft.

540π ft^2

378π ft^2

216π ft^2

594π ft^2

+5
Answers (2)
  1. 21 March, 04:04
    0
    Surface area of a cylinder = 2πr^2 + 2πrh = 2π x (18/2) ^2 + 2π x (18/2) x 12 = 162π + 216π = 378π ft^2
  2. 21 March, 04:56
    0
    SAcylinder=sides+top and bottom

    top=circumference times height

    top and bottom=2 itmes circle

    d=18

    d/2=18/2=9=r

    top and bottom=2pir^2=2pi9^2=2pi81=162pi

    sides

    c=2pir=18pi

    height=12

    sidearea=18*12*pi=216pi

    add

    162pi+216pi=378pi ft^2
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “What is the surface area of the cylinder? The diameter is 18ft and the height is 12ft. 540π ft^2 378π ft^2 216π ft^2 594π ft^2 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers