Vertex facts for kids
A vertex is like a special corner or point where lines, curves, or sides meet. Think of it as a meeting spot! When you have more than one vertex, they are called vertices. These points are often marked with letters, like P, Q, R, or S.
For example, the point where the two straight lines of an angle come together is a vertex. If you look at a cube, each of its eight corners is a vertex.
Vertices are important for both flat shapes (like a square) and 3D objects (like a pyramid). A pentagon, which is a flat shape with five sides, has five vertices. A tetrahedron, which is a 3D shape with four triangular faces, has four vertices.
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Vertex Facts for Kids. Kiddle Encyclopedia.