Okay so the question is: The volume of a cylinder is 12,566.4 cm^3. The height of the cylinder is 8cm. Find the radius of the cylinder to the nearest tenth of a centimeter.
I'm having trouble working out the equation.
I know the volume of a cylinder is BH(Area of the circle times height) but now I need to do something else to find the radius. Please show me!
I'm having trouble working out the equation.
I know the volume of a cylinder is BH(Area of the circle times height) but now I need to do something else to find the radius. Please show me!
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FORMULA FOR VOLUME OF A CYLINDER =
V = pi X r X r X h
12566.4 = 3.14 X r^2 X 8
r^2 = 12566.4 / 3.14*8 = 12566.4 / 25.12 = 500.25
r = \/ 500.25 = 22.366 cm
ANSWER radius = 22.4 cm ANSWER
V = pi X r X r X h
12566.4 = 3.14 X r^2 X 8
r^2 = 12566.4 / 3.14*8 = 12566.4 / 25.12 = 500.25
r = \/ 500.25 = 22.366 cm
ANSWER radius = 22.4 cm ANSWER
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V = π r² h
r² = V/ (π h)
r = √[(12566.4)/(8π)]
r ≈ 22.4 cm
r² = V/ (π h)
r = √[(12566.4)/(8π)]
r ≈ 22.4 cm
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bengo