1. folded sheet with pattern drawn on it. This is labeled: Triangular Prism (/) Separated into Three (/) Triangular Pyramids (/) Prop 18. It also is labeled: Model 45. It also is labeled: April-9-1916 ...
A prism has a constant cross-section throughout its length. When the cross-section is a triangle, the prism is called a triangular prism. When the cross-section is a hexagon, the prism is called a ...
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