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INTRODUCTION TO THREE DIMENSIONAL GEOMETRY — MATHS STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceMATHSINTRODUCTION TO THREE DIMENSIONAL GEOMETRY1 Mark
MCQ
In three dimensions, the coordinate axes of a rectangular cartesian coordinate system are:
  • A
    Three mutually parallel lines
  • ✓
    Three mutually perpendicular lines
  • C
    Two mutually perpendicular lines and any two parallel
  • D
    None of these
✓

Answer

Correct option: B.
Three mutually perpendicular lines
In three dimensions, the coordinate axes, i.e. x, y and z axes of a rectangular cartesian coordinate system are three mutually perpendicular lines. The word rectangular is used to indicate perpendicularity among the axes.

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