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O-LevelMathematicsGeometry4024/11 · May/June 2021 · Q52 Marks

The diagram shows quadrilateral ABCD with AD extended to E. Angle BCD = 135°, angle BAD = 83° and angle CDE = 122°. Find the value of x. [Figure 5]

x =[2]

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Mark scheme

Marking points from the official mark scheme (May/June 2021). The mark or mark type is shown in brackets.

[2] [x =] 84
M1 for 360 - 135 - 83 - their CDA
B1 for CDA = 58° soi

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About this question

Topic: Geometry, O-Level Mathematics (syllabus 4024). Structured question, 2 marks.
Source: O-Level Mathematics, May/June 2021 Paper 1 Variant 1, question 5.

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