Interior and Exterior angles of a Concave Polygon
❖ Learn how to find missing interior and exterior angles of a concave polygons using simple rules and a clear example!
In this video, we walk through a concave polygon which is an irregular polygon.
For this concave polygon, we find:
✔️ the missing interior angle x
✔️ the missing exterior angle y
🎯 Key concepts covered:
– What is a concave polygon?
– Sum of interior angles = (n – 2) × 180°
– Sum of exterior angles = 360°
– Exterior Angle = 180° – Interior Angle
You’ll see two different ways to solve the example, so you can clearly understand both approaches.
🔍 Learn how the exterior angles of any polygon always add up to 360 degree, just like a full circle. It’s a simple but powerful idea that works for every polygon!
📌 Video Timeline:
0:00 ❖Introduction
0:46 Type of a polygon
1:18 Key Rules
2:56 1st way to solve the example
6:39 2nd way to solve the example
12:20 Conclusion
🎯 Whether you're a student, teacher, or just love math this video is a helpful guide to mastering interior & exterior angles!
🎥 Watch more polygon geometry videos in the Geometry - Triangles, Polygons & Circles Playlist.
The link to Geometry - Triangles, Polygons & Circles Playlist:
• Geometry: Triangles, Quadrilaterals, Polyg...
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