Angle Bisector – Definition -Examples The angle(interior) bisector of an angle is a line or line segment that divides the angle into two (congruent)equal parts. The angle bisector is also called the internal angle bisector. In ∠ABC, BD is angle bisector of ∠ABC. In above figure BD is bisect the ∠ABC. ∵ ∠ABC = 900∴ ∠ABD = 450and ∠DBC = 450 ∠ABD and ∠DBC […]
Read More →Diagonals of Polygon’s In geometry, a line segment joining two vertices of a polygon or polyhedron, when those vertices are not adjacent is known as Diagonal. Diagonals of Polygon’s A polygon’s diagonal’s are line segments, that joining from one corner to another corner. Formula for number of diagonals = n(n-3)/2 where n is number of sides or […]
Read More →Theorem – The line segment joining the mid-points of two sides of a triangle is parallel to the third side. Given: A triangle △ABC, in which D and E are mid points of sides AB and AC respectively. DE is joined. To prove: Line joining the mid points D and E (DE) is parallel to the third line […]
Read More →Line Segments – How to Draw and Measure We see around us many objects of different geometrical shapes and sizes and understand the basic ideas of shapes, most of them are made up by lines or curves. In this lesson we will learn about draw a line segment and measure it […]
Read More →Axis of Symmetry – Symmetrical Figures Definition – Axis of Symmetry: A line is drawn from the middle of the figure that acts like a mirror is known as Axis of Symmetry or Linear Symmetry. The line divides the figure into two symmetrical parts, then figure on one side is the mirror image of the figure on […]
Read More →Transversal A “transversal” is a line or line segment, that intersects two or more lines or line segments. In above figure, line x and line y are transversal. In figure line l, intersects lines m and n at the point p and q […]
Read More →Vertex – Definition and Examples Vertex – Latin word Vertex meaning, “highest point”. What is Vertex? Vertex is a point where two or more rays or line segments are meet. When two rays or line segments meet, simply it is a corner, they form an angle. Definition: A vertex is a point on a polygon, where […]
Read More →Line segment, Line and Ray 1. Line segment A line segment is a part of a line, which has two end points, and contain all of the points between the two end points. In a sheet of a paper draw two points A and B, […]
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