Paper 2 · Co-ordinate Geometry of the Line
⏱ Tested in 4 exam questions since 2022
Lesson 4 of 9
The line 4: Area of Triangle
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- Find a triangle's area with ½|x₁y₂ − x₂y₁| when one vertex is at the origin
- Translate all three vertices by the same shift so one lands on the origin first
- Find an unknown coordinate by setting the area formula equal to a given area
- Split the modulus into ± cases and discard the geometrically invalid answer
Most recent exam questions
- 2025 P2 Q1(c)
- 2025 P2 Q7(c)(iii)
- 2023 P2 Q3(a)
- 2022 P2 Q3(b) — deferred
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