O-LevelMathematicsMensuration4024/21 · Oct/Nov 2025 · Q256 Marks
The diagram shows a cuboid. EH = 12 cm, HG = 10 cm and GC = 7 cm. [Figure of a cuboid named ABCDEFGH]
- (a)Show that CE = 17.1 cm, correct to 1 decimal place.[3]
- (b)Calculate the angle between the line CE and the base EFGH.[3]
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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.
- 25(a) 12² + 10² + 7² or better M2 M1 for 12² + 10² oe or 10² + 7² oe or 12² + 7² oe A1 17.11 to 17.12
- 25(b) 24.1... or 24.2 [3] M2 for sin[angle] = 7/17.1 oe or M1 for recognising the correct angle CEG
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