Understanding Exterior Angles in Polygons
Learn about exterior angles in polygons and how they relate to interior angles. Discover the relationship between interior/exterior angles and work out angle measurements in different polygons through interactive examples and challenges.
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Presentation Transcript
Last lesson we looked at calculating interior angles Today we are going to learn about exterior angles
Exterior Angles Copy and complete: The exterior angles of any polygon always sum to 360 An interior angle and an exterior angle always sum to 180
On your whiteboard Work out the size of angle ? The exterior angles of any polygon always sum to 360
On your whiteboard Work out the size of angle ? An interior angle and an exterior angle always sum to 180
On your whiteboard What is the size of each of the exterior angles in a regular octagon?
Challenge This diagram shows a regular hexagon. Work out the values of x and y
