The exterior angles of a polygon are formed by one side and the extension of its adjacent side at the vertex. They add up to 360° and are formed when one side of a polygon and the extension of the other side is extended. In all polygons, there are two sets of exterior angles: one that goes around clockwise and the other that goes around oclockwise.
The sum of all the exterior angles in a polygon is equal to 360°. Each exterior angle has a size of 60º and is calculated using the formula 360°/Number of sides of the polygon. If there are nine sides in the polygon, then each exterior angle is “supplementary”. Polygons are any flat shape with straight sides, and the exterior angles always add up to 360°. Since the interior angles of a regular polygon are all the same size, the exterior angles must also be the same size.
In GCSE maths, it is essential to understand the sum of exterior angles for a polygon and solve examples to calculate the sum of these angles. The sum of all the exterior angles in a polygon is equal to 360°, and the size of each exterior angle is 60º.
📹 How To Calculate The Interior Angles and Exterior Angles of a Regular Polygon
This geometry video tutorial explains how to calculate the interior angles and the exterior angles of a regular polygon. Examples …
📹 Exterior Angles of a Polygon
The exterior angles of a polygon are angles drawn from an adjacent side. The exterior angles also add up to 360 degrees.
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