Parallel lines in geometry are a set of two lines in the same plane that are equidistant to each other. Put simply, they are two perpendicular lines that never meet or intersect.
Mostly used in Triangular Geometry, the theorem of Proportional parts, describes a situation where there is equality of proportion in the dimensions of a shape.
The dimensions referred to above are:
In triangular geometry, a pair of triangles are said to b proportional if they both have similar perimeters, hence corresponding sides.
It is to be noted that the question seems to be missing some information hence the general answer.
Learn more about Proportional Parts and Parallel Lines at:
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