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O-LevelMathematicsMensuration4024/11 · May/June 2018 · Q173 Marks

The diagram shows a square ABCD joined to a right-angled triangle BEC. BE = 6 cm and EC = 7 cm. Calculate the area of the pentagon, ABECD. [Figure 17.1]

The diagram shows a square ABCD joined to a right-angled triangle BEC. BE = 6 cm and EC = 7 cm. Calculate the area of the pentagon, ABECD.[3]

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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.

[3] 106
M1 for [BC² =] 6² + 7² or better and
M1 for [area triangle BCE =] 6×7/2 or 21

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About this question

Topic: Mensuration, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source: O-Level Mathematics, May/June 2018 Paper 1 Variant 1, question 17.

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