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O-LevelMathematicsGeometry4024/12 · Oct/Nov 2018 · Q193 Marks

In the diagram, PQ intersects LM at O. [Figure of intersecting lines]

  1. (a)On the diagram, construct the locus of points that are equidistant from the lines PQ and LM,[2]
  2. (b)the locus of points that are equidistant from O and Q.[1]

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Mark scheme

Marking points from the official mark scheme (Oct/Nov 2018). The mark or mark type is shown in brackets.

  1. [2] All four angle bisectors
  2. B1 for one, two or three angle bisectors
  3. [1] Acceptable perpendicular bisector of OQ

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About this question

Topic
Geometry, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, Oct/Nov 2018 Paper 1 Variant 2, question 19.

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