O-LevelMathematicsMensuration4024/12 · Oct/Nov 2018 · Q144 Marks
The diagram shows a triangular prism. The measurements are in centimetres. [Figure showing a triangular prism with dimensions 3, 4, 5, 4, 4]
- (a)On the grid below, complete the accurate drawing of a net of the prism. Do not draw outside the grid. [Grid provided][2]
- (b)Find the total surface area of the prism.[2]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2018). The mark or mark type is shown in brackets.
- [2] Correct net
- B1 for rectangle A or triangle 1, 2 or 3
- [2] 60 nfww
- M1 for attempting to find the areas of five faces
- or B1 for four of 6, 6, 12, 16, 20 (or combinations)
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