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Match each term to its definition

Exercise and reference answers

Matching pairs
  1. Left
    Direction cosines
    Right
    cosines of the angles a line makes with the axes
  2. Left
    Direction ratios
    Right
    numbers proportional to the direction cosines
  3. Left
    Skew lines
    Right
    lines that neither meet nor run parallel

Explanation

The chapter's four core definitions, taken straight from the summary. Source: syllabus Maths Part II, Ch 11 Three Dimensional Geometry.
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