4MA1/1HR Jan 2023, Question 2: Surface Area of a Cuboid and Cylinder
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1HR (Higher) · Calculator · 3 marks
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The question, in short
Using the prism diagram with a right-angled triangular end of legs 4.8 cm and 3.6 cm, length 7 cm and sloping edge 6 cm, calculate its total surface area to 3 significant figures.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 3 marks
- 10.5 × 4.8 × 3.6 = 8.64
- 22 × 8.64 = 17.28
- 37 × 3.6 = 25.2
- 47 × 4.8 = 33.6
- 57 × 6 = 42
- 617.28 + 25.2 + 33.6 + 42 = 118.08
- 7118.08 ≈ 118
Answer118
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