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Kit
 
 
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Faces on a cylinder/cone
Old 03-04-2009, 02:54 PM
 
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However ... An edge 'is' created on a cone and cylinder. An edge is where 2 faces (surfaces) meet and ...to determine the volume of a solid figure, you must determine its 'inside' capacity. Without a curved face to determine the area... the 'solid' doesn't exist. Cone is 1 flat and 1 curved face (2), cylinder is 2 flat 1 curved face (3) A sphere is one curved face!
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