Posted by **Anonymous ii** on Saturday, January 21, 2012 at 5:37pm.

A storage tank is in the shape of a right circular cylinder that has a diameter of 20 inches and a height of 3yards. if oil costs $2 per cubic foot, what does it cost to fill the storage tank oil?

- maths -
**Reiny**, Saturday, January 21, 2012 at 5:47pm
volume of cylinder = πr^2 h

radius = 10 inches

= 10/12 or 5/6 ft

height = 3 yards = 9 ft

vol = π(25/36)(6) = (25/6)π cubic ft.

cost = $2(25/6)π = $25π/3 or $26.18

- maths -
**alexius**, Thursday, February 12, 2015 at 5:54pm
a circle has a circumference of about 16.3 meters and a diameter of about 5.2 meters what is the relationship between the circumference and diameter of this cricle

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