This geometry video tutorial provides a basic introduction into polygons. It explains how to identify if a figure is a regular polygon from those that are not polygons. Polygons have a 2D shape, they are closed figures, and do not contain intersecting lines and open sections. This video discusses different types of polygons such as triangles, squares, rectangles, rhombuses, trapezoids, quadrilaterals, pentagons, hexagons, heptagons, octagons, nonagons, and decagons. it explains how to calculate the sum of the interior angles of a polygon and how to determine the measure of the interior angle of a regular polygon as well as the exterior angle using a simple formula. This geometry video contains plenty of examples and practice problems.
Polygons: https://www.youtube.com/watch?v=E_-3ulbtcLk
Angles of Regular Polygons:
https://www.youtube.com/watch?v=OEzEo4XqzJQ
Quadrilaterals:
https://www.youtube.com/watch?v=ogcH3eM5beM
Parallelograms:
https://www.youtube.com/watch?v=t42sLuns4Qs
Rectangles - Special Quadrilaterals:
https://www.youtube.com/watch?v=Ov4aTty67A8
Isosceles Trapezoids:
https://www.youtube.com/watch?v=AlyWS8bG3kE
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The Rhombus:
https://www.youtube.com/watch?v=uXo_Vpctmrg
Kites:
https://www.youtube.com/watch?v=UTgF6lSAMa8
Proving Parallelograms:
https://www.youtube.com/watch?v=MQJnPfNb2Og
Proving a Quadrilateral Is a Kite:
https://www.youtube.com/watch?v=dh8vRzTNVBg
Proving a Quadrilateral Is a Rhombus:
https://www.youtube.com/watch?v=EtoP5G98sok
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Proving Isosceles Trapezoids:
https://www.youtube.com/watch?v=EvTHRcNBAc8
2 Column Proofs - Quadrilateral:
https://www.youtube.com/watch?v=m8BlpR7xhiM
Skew Lines:
https://www.youtube.com/watch?v=cemF45vNOhg
Points, Lines, Planes, & Segments:
https://www.youtube.com/watch?v=dDWjhRfBsKM
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