Math 13 - -u00b6 Solid Mensuration Week 2 - Parts of a...

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Parts of a polygon1.Side or edge2.Vertex3.Diagonal4.Interior Angle5.Exterior angle6.Apothem7.Central angle
Three Major Conditions to Classify a Polygon1.Must be a 2-dimensional figure2.Must be a closed figure3.Should be bounded by 3 or more straight linesPolygons are said to be similar if:1.Their corresponding interior angles are equal2.Corresponding sides are proportional
Types of Polygons1.Simple and Complex Polygons2.Concave and Convex Polygons3.Regular and Irregular Polygons
Equations for two similar polygons1.2. 22
Names of PolygonsNumber of SidesPolygon3 Triangle, Trigon4 Quadrilateral, Tetragon5 Pentagon 6 Hexagon7 Heptagon8 Octagon9 Nonagon, Enneagon10Decagon
Names of PolygonsNumber of SidesPolygon11Undecagon, hendecagon12Dodecagon13Tridecagon14Tetradecagon15Pentadecagon16Hexadecagon17Heptadecagon18Octadecagon19Enneadecagon20Icosagon
SidesPrefixSidesSuffix20 Icosa1henagon30 Triacon

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