Geometry Formulas – IGCSE Maths
Every geometry formula you need for Cambridge IGCSE Mathematics 0580, with clear explanations of when and how to use each one.
Triangle angles sum to 180°
CoreKey formula for geometry in IGCSE Maths.
When to Use
Use when working with geometry problems.
Show your substitution clearly for method marks.
Quadrilateral angles sum to 360°
CoreKey formula for geometry in IGCSE Maths.
When to Use
Use when working with geometry problems.
Show your substitution clearly for method marks.
Polygon interior angles = (n−2) × 180°
CoreKey formula for geometry in IGCSE Maths.
When to Use
Use when working with geometry problems.
Show your substitution clearly for method marks.
Exterior angle = 360° / n
CoreKey formula for geometry in IGCSE Maths.
When to Use
Use when working with geometry problems.
Show your substitution clearly for method marks.
Similar triangles
CoreKey formula for geometry in IGCSE Maths.
When to Use
Use when working with geometry problems.
Show your substitution clearly for method marks.
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Book a Free TrialFrequently Asked Questions
Which geometry formulas are given in the exam?
Check the IGCSE formula sheet provided in your exam. Some geometry formulas must be memorised.
How do I remember geometry formulas?
Practice using them in past paper questions. Repeated application is more effective than rote memorisation.
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