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What is geometry? A dictionary might say it is the study of shapes and configurations. An even better dictionary might say it is the study of figures in a space of a given number of dimensions and of a given type. A comic might say life is pointless without geometry (and you may or may not get it). But I want you to think of geometry as a game. It's a game that starts with a few rules that we must accept, like passing "GO" brings us $200.
Course ID: MA.09.GeometryA_3.2.bnet4copy
Spatial reasoning and visualization are ways to orient thinking about the physical world.
Logical reasoning creates a higher level of thinking used throughout geometry.
Congruence describes a special similarity relationship between objects and is a form of equivalence.
Similarity relationships between objects are a form of proportional relationships.