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O-LevelMathematicsCoordinate geometry4024/12 · Oct/Nov 2019 · Q185 Marks

The vertices of a triangle are A (7, 0), B (−1, 6) and C (−1, -4).

  1. (a)Show that AB = BC.[3]
  2. (b)Find the area of triangle ABC.[2]

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2019). The mark or mark type is shown in brackets.

  1. [3] (a) (7-(-1))² + (0 – 6)², BC = 10, correct completion to AB = BC [ = 10] M1, B1, A1
  2. [2] (b) 40 M1 for ½ × their(BC) × ( 7 – (−1)) oe

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About this question

Topic
Coordinate geometry, O-Level Mathematics (syllabus 4024). Structured question, 5 marks.
Source
O-Level Mathematics, Oct/Nov 2019 Paper 1 Variant 2, question 18.

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