• 1 · Religion and Magic
• 2 · Nature
• 3 · Human Being, Man in General
• 4 · Society, Civilization, Culture
• 5 · Abstract Ideas and Concepts
• 6 · History
• 7 · Bible
• 8 · Literature
• 9 · Classical Mythology and Ancient History

• Top
• 4 · Society, Civilization, Culture
• 49 · education, science and learning
• 49D · mathematics

49D4 · stereometry, solid geometry

• 49D44 · pyramid ~ stereometry
• 49D45 · regular polyhedron
• 49D46 · cylinder ~ stereometry
• 49D47 · cone ~ stereometry
• 49D48 · sphere, globe ~ stereometry