O-LevelMathematicsGeometry4024/12 · Oct/Nov 2025 · Q34 Marks
ABCD is a parallelogram. E is a point on AB and EC = BC. Angle ECB = 40° and angle DEC = 60°. Find the value of x. [Figure: parallelogram ABCD with points E on AB, angles 60, 40, x shown. NOT TO SCALE]
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Mark scheme
Marking points from the official mark scheme (Oct/Nov 2025). The mark or mark type is shown in brackets.
- [4] 20 nfww
- [4] B1 for CEB or CBE = 70°
- [4] B1 for ECD = 70° or EAD = 110° or ADC = 70°
- [4] B1 for AED = 50° or EDC = 50°
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