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O-LevelAdditional MathematicsTrigonometryOct/Nov 2020Paper 2 Q88 Marks

DO NOT USE A CALCULATOR IN THIS QUESTION. In this question lengths are in centimetres. [Figure 8.1: A diagram showing a triangle ABC with angle A = 30°, side AB = 2√3+1, side BC, and side AC. A box shows trigonometric ratios: sin 30° = 1/2, cos 30° = √3/2, tan 30° = 1/√3.]

Q: What topic does this question test?

This question tests Trigonometry in O-Level Additional Mathematics (syllabus code 4037). It is worth 8 marks.

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This O-Level Additional Mathematics Question

Topic

This structured question tests Trigonometry in O-Level Additional Mathematics (syllabus code 4037). It is worth 8 marks.

Source

This question appeared in the Cambridge O-Level Additional Mathematics Oct/Nov 2020 examination, Paper 2 Variant 2.

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