. . "What is symmetry?"@en . . "What is symmetry?" . . . . . . "Juvenile works"@en . "Juvenile works" . . . . "A simple description of the different types of symmetry, including line, point, and plane."@en . "A simple description of the different types of symmetry, including line, point, and plane." . . . . . . . . "Xedia (Firm)" . . . .