Paper 1 · Number Theory
⏱ Tested in 1 exam question since 2022
Lesson 5 of 5
Number Theory 5 – Construct √3
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- Construct a length of √3 from two overlapping unit circles — compass and ruler only
- Use the chord-bisector theorem to get the right angle without a set square
- Apply Pythagoras to half the chord: |CO| = √3/2, so |CD| = √3
Most recent exam questions
- 2022 P2 Q6(a) — deferred
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