O-LevelMathematicsGeometry4024/12 · May/June 2023 · Q65 Marks
The scale drawing shows the positions of two villages, A and B. The scale is 1 cm to 2 km. [Figure X.X]
- (a)(i)Find the actual distance AB.[2]
- (a)(ii)Find the bearing of B from A.[1]
- (b)A plane flies so that it is always equidistant from A and B. Using a straight edge and compasses only, construct the path of the plane.[2]
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 2023). The mark or mark type is shown in brackets.
- 6(a)(i) 18.6 to 19.4
- 6(a)(i) B1 for 9.3 to 9.7 seen or M1 for their distance in cm × 2 as answer
- 6(a)(ii) 238 to 242
- 6(b) Acceptable perpendicular bisector of AB with two pairs of correct arcs
- 6(b) B1 for acceptable perpendicular bisector with no/incorrect arcs
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