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Prism is a solid that has two parallel bases joined by three or more lateral surfaces (sides). The bases are polygons that have the same size and shape. The lateral surfaces are parallelograms.
Rectangle is a four-sided plane figure with four right angles. It is a parallelogram with right angles. A rectangle is symmetric with respect to… More>>
Parallax, PAR uh laks, is the difference in direction of an object when seen from two positions that are not in a direct line with each other and… More>>
Skew line, in advanced geometry, is a line in space that neither runs parallel to another line nor intersects another line. The word skew means… More>>
Hexahedron, hehk suh HEE druhn, in geometry, is a solid figure that has six faces. It is a kind of polyhedron, which is a solid whose faces are… More>>
Octahedron is any solid, three-dimensional figure with eight faces. It is a type of polyhedron (solid figure with many faces). The faces of an… More>>
Polyhedron 
Bermuda Triangle Pictures
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