angle of inclination
Noun

(geometry) the angle formed by the xaxis and a given line (measured counterclockwise from the positive half of the xaxis) (synset 113912295)
domain category: geometry  the pure mathematics of points and lines and curves and surfaceshypernym: angle  the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radianssynonym: inclination
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