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Home >> Basic Geometrical Terms >> Diagonals >>

Define Diagonals of Polygon

 Polygons and its Types Sides Vertex Diagonals Adjacent Sides Adjacent Vertices's Perimeter Congruent & Congruence Axis Perpendicular Lines

 Definition: A line segment which joins two vertices (other than adjacent vertices) is called Diagonal. In other words, a line segment which joins opposite vertices, is referred to as "Diagonal" In the following polygon: Line AC and DB joins opposite vertices i.e A & C and D & B respectively. Hence AC and DB are the Diagonals of given Polygon ABCD. Let study following figure also and find names of all Diagonals: Figure 1: Line PR and QS joins opposite vertices i.e. P & R and Q & S respectively. Hence PR and QS are the Diagonals of given Polygon ABCD. Figure 2 : In the above figure, AE, AD, AC, BF, BE, BD, CE, CF & DF all are Diagonals.

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