by 
ira1100
ANSWERS: 4
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Cylinder
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Cylinder is correct
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It could be a right circular cylinder. "A cylinder is one of the most basic curvilinear geometric shapes, the surface formed by the points at a fixed distance from a given straight line, the axis of the cylinder. The solid enclosed by this surface and by two planes perpendicular to the axis is also called a cylinder. The surface area and the volume of a cylinder have been known since deep antiquity. In differential geometry, a cylinder is defined more broadly as any ruled surface spanned by a one-parameter family of parallel lines. A cylinder whose cross section is an ellipse, parabola, or hyperbola is called an elliptic cylinder, parabolic cylinder, or hyperbolic cylinder." "In common usage, a cylinder is taken to mean a finite section of a right circular cylinder with its ends closed to form two circular surfaces" Source and further information: http://en.wikipedia.org/wiki/Cylinder_(geometry%29
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A tin, a broom handle, a bin, a pen, a glass, a candle, an energy saving lightbulb......anything cylindical really!
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