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Parallelism (grammar) In grammar, parallelism, also known as parallel structure or parallel construction, is a balance within one or more sentences of similar phrases or clauses that have the same grammatical structure. The application of parallelism improves writing style and readability, and is thought to make sentences easier to process.
How to construct a line parallel to a given line that passes through a given point with compass and straightedge or ruler. It is called the 'translated triangle method' because it works by translating a triangle along one of its sides. The third vertex traces out a line parallel to that side. A Euclidean construction.