+**Projective Geometry** is a branch of [Geometry](/wiki/geometry) studying properties that remain invariant under projective transformations. It unifies Euclidean and hyperbolic geometries by introducing "points at infinity," creating a cohesive and elegant framework for understanding [Perspective](/wiki/perspective) and spatial relationships.
+## See also
+- [Euclidean Geometry](/wiki/euclidean_geometry)
+- [Affine Geometry](/wiki/affine_geometry)
+- [Transformation](/wiki/transformation)
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