Paper 2 · Geometry
⏱ Tested in 2 exam questions since 2018
Lesson 13 of 19
Geometry 13 – Proof of theorem 12
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- Prove Theorem 12: a parallel to one side of a triangle cuts the other two in the same ratio
- Divide AX into s and XB into t equal parts, drawing a parallel through each point
- Apply Theorem 11 to transfer the equal segments to AC, then cancel k in sk : tk
- Picture concrete numbers (s = 2, t = 4) while writing the proof in letters
Most recent exam questions
- 2025 P2 Q5(a) — deferred
- 2018 P2 Q6(a)
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