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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: • Polygons
Angles of Regular Polygons:
• How To Calculate The I...
Quadrilaterals:
• Quadrilaterals - Geometry
Parallelograms:
• Parallelograms - Geometry
Rectangles - Special Quadrilaterals:
• Rectangles - Propertie...
Isosceles Trapezoids:
• Isosceles Trapezoids
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The Rhombus:
• Rhombus, Basic Introdu...
Kites:
• Kites, Basic Introduct...
Proving Parallelograms:
• Proving Parallelograms...
Proving a Quadrilateral Is a Kite:
• Proving a Quadrilatera...
Proving a Quadrilateral Is a Rhombus:
• Two Column Proofs - Pr...
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Proving Isosceles Trapezoids:
• Two Column Proofs - Pr...
2 Column Proofs - Quadrilateral:
• Two Column Proofs With...
Skew Lines:
• Skew Lines, Perpendicu...
Points, Lines, Planes, & Segments:
• Points, Lines, Planes,...
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