การดู
10:25
Making Regular Polygons in Geometer's Sketchpad
27:55
Geometry: Developing Formulas for Circles and Regular Polygons Lesson Video
18:53
ASMR Math, Geometry: Calculating Interior Angles of Regular Polygons, Deriving Formulas Trigonometry
11:09
Exterior and Interior Angles of Polygons||Angles in Regular Polygons||Angle Finding Formula.
2:29
Etoys - Drawing Regular Polygons
4:22
Shape Machine Demo - Find Polygons in a 5-Star Polygon
8:44
How to find the sum of the interior angles of polygons
8:15
The EASIEST way to name polygons - (How to identify polygons by their number of sides)