20:41 Angles in Polygons - GCSE Maths
Thorough GCSE walkthrough of interior and exterior angles in regular and irregular polygons.
Exterior angles of any polygon
Derive and use the sum of exterior angles for any polygon
5 hand-picked video lessons for this topic, each checked for relevance and clarity, graded by difficulty and labelled by depth. Press play to watch — nothing loads from YouTube until you do.
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11:00 Angles in Polygons - Interior & Exterior Angles | GCSE Maths Tutor
GCSE tutor covers interior and exterior angle techniques for regular polygons, higher and foundation.
3:52 Interior and Exterior Angles of a Polygon
Concise run through interior and exterior angle sums with the number-of-sides method.
13:13 How To Calculate The Interior Angles and Exterior Angles of a Regular Polygon
Clear worked examples finding interior and exterior angles of regular polygons like pentagons and octagons.
6:20 Finding Interior and Exterior Angles in a Polygon
Formulas and four worked examples covering interior and exterior polygon angles.