GCSE Maths (AQA)

435 videos | 33 hours

Interior Angles in a Polygon

Please subscribe to watch this video.

This, and all other videos, are included in our premium subscriptions.

Premium accounts get access to all videos.

Geometry and Measures Properties and Constructions

Interior Angles in a Polygon

2:33 Angles in Shapes
Spec G3 G6
Previous Interior Angles in a Triangle Next Exterior Angles Around a Polygon
  • Any polygon can be divided into triangles by drawing diagonals from a vertex
  • The number of triangles in a polygon is always two less than the number of sides
  • The sum of the interior angles of any polygon is equal to the number of sides minus two, multiplied by 180 degrees
  • The sum of the interior angles of a polygon is the same as the sum of all the angles of the triangles it is divided into
  • To calculate the sum of the interior angles for all the triangles, multiply 180 by the number of triangles
  • The formula for the sum of the interior angles of a polygon is: number of sides minus two, multiplied by 180 degrees
  • The sum of the interior angles for a quadrilateral is 360 degrees

Please subscribe to access these revision notes.

This, and all other video notes, are included in our premium subscriptions.

Premium accounts get access to all videos and revision notes.