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Interior and exterior angles

Interior and exterior angles

Pentagon with one interior angle inside, one exterior angle outside, and a straight line showing they add to 180° A polygon is a flat 2D shape with straight sides, and each corner is called a vertex. The angle inside the shape is an interior angle.

Angles in Polygons Lesson

  1. GCSE
  2. /Maths
  3. /Angles in Polygons

Step-by-step lessons covering OCR GCSE Maths Angles in Polygons for Foundation and Higher tier. Each lesson works through exam-style questions in the written papers format. Build fluency with number, ratio and algebra first, since geometry, probability and statistics topics rely on them, and leave extra time nearer the exam for Higher-tier problem-solving and multi-step reasoning questions.

Lessons

Compound Interest and DepreciationIndicesPrime Factors, HCF and LCMInequalitiesForming and Solving EquationsSequences (Nth Term)Expanding and FactorisingPythagorasAngles in Parallel LinesAngles in PolygonsSurface AreaVolume of a PrismCylindersBearingsPlans and ElevationsAverages from Frequency TablesProbabilityScatter Graphs