IP AMaths Notes (Upper Sec, Year 3-4): 08) Plane Geometry with Algebra
08 Nov 2025, 00:00 Z
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Q: What does IP AMaths Notes (Upper Sec, Year 3-4): 08) Plane Geometry with Algebra cover?
A: Combine coordinate geometry, similarity, and circle theorems to chase angles and lengths in IP AMaths.
Upper-sec paper setters mix Euclidean geometry with algebraic coordinates. Treat every diagram as an algebra system: assign variables, write equations, then solve.
Keep the full topic roadmap handy via our IP Maths tuition hub so you can jump into related drills, quizzes, or diagnostics as you move through these notes.
These reminders stay within the SEAB GCE O-Level Additional Mathematics (4049) coordinate-geometry and circle-theorem scope used in IP programmes.
Status: SEAB O-Level Additional Mathematics 4049 syllabus (exams from 2025) checked 2025-11-30 - scope unchanged; remains the reference for this note.
Key reminders
- Interior angles of a triangle sum to ().
- Circle theorems still apply with coordinates: equal chords subtend equal angles, angle at centre is twice the angle at circumference, cyclic quadrilaterals have opposite angles summing to
