O-LevelMathematicsMensuration4024/12 · May/June 2018 · Q174 Marks
The diagram shows a pyramid. The square base, ABCD, has an edge of 3 cm. The base is horizontal, and vertex E is vertically above D, where ED = 4 cm.
- (a)On the grid below, complete the accurate drawing of a net of the pyramid. Do not draw outside the grid.[2]
- (b)Calculate the total surface area of the pyramid.[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 (May/June 2018). The mark or mark type is shown in brackets.
- [1] B1 for one correct triangle in correct position
- [1] Correct net
- [1] M1 for area of triangle = 1/2 × 3 × 4 or 1/2 × 3 × 5 soi or x²
- [1] 36 nfww
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