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Q: What is the volume of a cone with radius of 2 mm and height of 80 mm?

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The answer will depend on whether the shape is a cone or a cylinder. And since you have not bothered to provide that information, I cannot provide a sensible answer.

More data is required. I assume the drum has the form of a cylinder; the volume of a cylinder is calculated as pi x radius squared times height. Different combinations of radios and height can give the same volume.

Around 80 m tower height + 40m radius

80*pi

There are 80 modern quarters to a pound. Each has a thickness of 1.75mm Each has a diameter of 24.3mm So a stack of 80 would form a cylindar 140mm tall with a radius of 12.15mm The volume of a cylindar is expressed as pi times the radius squared times the height, or : 3.14159 X 12.15 X 12.15 X 140 = 64,927.71177 cubic mm Dan

If my density remains the same, as it tends to do if you're a human (and my height stays constant also) then halving my radius would result in a 4 fold decrease in mass. So whatever the ratio of the new radius to the old, you must square it to find the new mass to old mass ratio. This is because the mass with constant height is a two dimensional function of area, whereas the radius is only one dimensional. Eg. Radius is now 80% of original. New mass is 80% * 80% = 64% of original. If you're talking 3 dimensional radius reduction, like a sphere, then you CUBE the ratio. So 80% * 80% * 80% = 51.2%. So reducing the radius by only 20% results in nearly halving the mass!

The volume of a cuboid is the length x width x height, so in this case the volume is 2*5*80 = 80 centimeters.

Cylinder Volume = (pi) *(radius2)*(height) Cylinder volume = (3.1416)*(22)*(80) Cylinder volume = 1005.312 cm Density = Mass / Volume 0.0045 gcm = Mass / 1005.312 cm Mass = 0.0045 gcm * 1005.312 cm Mass = 4.523904 g

Volume cannot be calculated out of two dimensions . For this, we need length, breadth and height. That is 3 dimensions.

Volume = 1/3*6*5*8 = 80 cubic feet

A rectangular prism with a length of 8 yards, width of 2 yards and height of 5 yards has a volume of 80 cubic yards.

Radius = Half Diameter So, To Find The Radius You Times 80 By 2 ( 80 x 2 ) = 160 Hope It Helped

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