O-LevelMathematicsGeometry4024/12 · May/June 2018 · Q72 Marks
Triangle OPQ is part of a figure that has rotational symmetry of order 2 about the point O. Complete the figure.
- (a)Triangle OPQ is part of a figure that has rotational symmetry of order 2 about the point O. Complete the figure.[1]
- (b)The diagram shows a circle, its centre, and two chords. Add one chord, to give a diagram that has one line of symmetry.[1]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2018). The mark or mark type is shown in brackets.
- [1] A correct figure with rotational symmetry of order 2 about O
- [1] A correct chord added to give one line of symmetry (e.g., a diameter or a chord parallel to existing chord and equidistant from center).
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