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O-LevelMathematicsGeometry4024/11 · May/June 2018 · Q83 Marks

A, B and C are points on the circumference of a circle centre O. O is the midpoint of BC and ABC = 38°. Tangents are drawn from T to touch the circle at A and B. [Figure 8.1]

  1. (a)Calculate BĈA.[1]
  2. (b)Calculate AÎB.[2]

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Mark scheme

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

  1. [1] 52
  2. [2] 76
  3. B1 for 104 seen or TAB or TBA = 52 on diagram or in working

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About this question

Topic
Geometry, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source
O-Level Mathematics, May/June 2018 Paper 1 Variant 1, question 8.

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