Mathematics GCSE
Angle sums in triangles, polygons and regular polygons
What Angle sums in triangles, polygons and regular polygons means in Mathematics GCSE, as defined for AQA.
Definition of Angle sums in triangles, polygons and regular polygons
Check what you remember
Read the wording for your board, then hide it and explain Angle sums in triangles, polygons and regular polygons in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The sum of angles in a triangle is 180°, any polygon with n sides has an interior angle sum of (n − 2) × 180°, and exterior angles sum to 360°.
Topics that use Angle sums in triangles, polygons and regular polygons
- Properties and constructions (AQA GCSE)
Related terms
- Alternate and corresponding angles on parallel lines
- Angle bisection
- Arc
- ASA
- centre
- Chord
- Circumference
- Congruence
Using Angle sums in triangles, polygons and regular polygons in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Mathematics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Mathematics GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge