Paper 2 · Co-ordinate Geometry of the Line
⏱ Tested in 2 exam questions since 2017
Lesson 8 of 9
The Line 8 – Construction 21 – Centroid
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- Construct the centroid with ruler and compass by drawing two medians
- Use the 2:1 ratio — the centroid sits two-thirds along each median from the vertex
- Compute the centroid with the section formula (2:1) from a vertex to the opposite midpoint
- Check silently with ((x₁+x₂+x₃)/3, (y₁+y₂+y₃)/3) — not as written exam working
Most recent exam questions
- 2024 P2 Q4(a)
- 2017 P2 Q3(a)
- 2017 P2 Q3(b)
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