In a triangle there room three sides. In theadjoining figure of a triangle abc we have the right to observe the the variety of trianglescontained = 3 – 2 = 1.

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In a square there are 4 sides.Number that triangles consisted of in a quadrilateral = 4 – 2 = 2.

In the adjoining figure of a quadrilateralABCD, if diagonal line BD is drawn, the quadrilateral will certainly be separated into twotriangles i.e. ∆ABD and also ∆BDC.


In a pentagon there are five sides. Numberof triangles consisted of in a pentagon = 5 – 2 = 3.

In the adjoining figure of a pentagonABCDE, on involvement AC and AD, the given pentagon is separated into 3 trianglesi.e. ∆ABC, ∆ACD and ∆ADE.


In a hexagon there are six sides. Number oftriangles consisted of in a hexagon = 6 – 2 = 4.

In the adjoining figure of a hexagon ABCDEF,on involvement AC, ad and AE, the offered hexagon is separated into 4 triangles i.e.∆ABC, ∆ACD, ∆ADE and also ∆AEF.



Polygon and its Classification

Terms regarded Polygons

Interior and Exterior that the Polygon

Convex and also Concave Polygons

Regular and Irregular Polygon

Number the Triangles consisted of in a Polygon

Angle Sum building of a Polygon

Problems on edge Sum building of a Polygon

Sum the the internal Angles the a Polygon

Sum that the Exterior angles of a Polygon

7th Grade math Problems 8th Grade mathematics Practice From variety of Triangles contained in a Polygon to house PAGE

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