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When we study any geometric figure, be it 2-dimensional or 3-dimensional, we use three fundamental properties to define it. These properties are: vertices, faces, and edges. A vertex or vertices (plural for “vertex”) are the points where two straight lines intersect or come together to form a point . Learn what vertices , faces and edges are and how to identify them in different plane and solid shapes. See examples, solved problems and practice questions with interactive games and activities. Learn about "what are vertices ?" Vertices for 2D and 3D shapes, difference between edges and vertices , Do circles have vertices , summary, solved examples and FAQs For SAT and ACT Exams. Learn the definitions and examples of vertices , edges and faces in geometry. Find out how to apply Euler's formula to solid shapes and explore the Platonic solids.