Study on the relationship of the volume of a Prism, pyramid, cone, cylinder-shaped and spherical.Preparatory stage.1. the relationship of the volume of a Prism-shaped pyramid triangle base pyramid shaped preparation. Square and hexagonal base and much space height is equal to the base of the triangular prism shape. Square and hexagonal side respectively as a mold for casting geometry.2. the relationship of the volume of a cone-shaped cylinder and sphere, cylinder and cone shaped prepared sphere (RADIUS), and height are equal. As for casting, mould geometry
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