What is an Angle Bisector?

An Angle Bisector, within geometry, is a ray, line, or segment that effectively splits a given angle into two equal parts. In simpler terms, it’s a method of dividing an angle into two equal angles. For example, if you need to create a 60° angle, you can achieve this by first constructing a 120° angle and then dividing it using an angle bisector.

Similarly, angles like 90 degrees, 45 degrees, and 15 degrees can also be constructed using the concept of an angle bisector. An example of an Angle Bisector can be observed in a clock. This occurs when the angle formed by the minute hand and the hour hand is divided equally by the presence of the second hand.

Angle Bisector Definition

An Angle Bisector can be defined as a ray or line segment that, when applied to a given angle, splits it into two angles of the same measure. In simpler terms, it is a way of dividing an angle into two congruent or equal angles.

Angle Bisector

Angle Bisector in geometry is a line, ray, or segment that divides an angle into two equal angles of the same measure. The word Bisector means dividing a shape or an object into two equal parts. In the case of geometry, it is often used to split triangles and angles into equal measures.

In this article, we will discuss the introduction, definition, and properties of an Angle Bisector and its meaning. We will also understand the construction of an Angle Bisector and the theorem to calculate the angle. We will also solve various examples and provide practice questions for a better understanding of the concept of this article.

Table of Content

  • What is an Angle Bisector?
  • Angle Bisector of Triangle
  • Properties of Angle Bisector
  • Construction of an Angle Bisector
  • Angle Bisector Theorem
  • Perpendicular Bisector Theorem
  • Solved Example of Angle Bisector
  • Practice Questions on Angle Bisector

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What is an Angle Bisector?

An Angle Bisector, within geometry, is a ray, line, or segment that effectively splits a given angle into two equal parts. In simpler terms, it’s a method of dividing an angle into two equal angles. For example, if you need to create a 60° angle, you can achieve this by first constructing a 120° angle and then dividing it using an angle bisector....

Angle Bisector of Triangle

In a triangle, an Angle Bisector is a straight line that splits an angle into two equal or congruent parts. Ever triangle consists three vertices and three associated triangle. There can have up to three angle bisectors. Angle bisectors of a triangle can be classified into two types depending on the angles they bsect...

Properties of Angle Bisector

The properties of Angle Bisector are mentioned below:...

Construction of an Angle Bisector

To construct an Angle Bisector for an angle using a ruler and compass, follow these steps:...

Angle Bisector Theorem

The Angle Bisector Theorem states that within a triangle, when an angle bisector is drawn from a vertex and it extends to one side, this bisector divides that side in a proportion equivalent to the ratio of the other two sides of the triangle, it means that the relationship between the segments formed by the angle bisector on one side is directly linked to the relative lengths of the other two sides of the triangle....

Perpendicular Bisector Theorem

The Perpendicular Bisector Theorem states that if a point is on the perpendicular bisector of a line segment, then it is equidistant from the endpoints of the line segment. In other words, if a point is equidistant from the endpoints of a line segment, it must lie on the perpendicular bisector of that line segment....

Solved Example of Angle Bisector

Example 1: If an Angle Bisector divides an angle of 120 degrees, then what will be the measure of each angle?...

Practice Questions on Angle Bisector

Q1. If an Angle Bisector divides 280degrees, then what will be the measure of each angle? Q2. Construct the Angle Bisector of 100 degrees angle. Q3. Construct an Angle Bisector of 20 degrees angle. Q4. If an Angle Bisector splits a right angle, what will be the measure each angle? Q5. Find the value of x if the ray OM is an Angle Bisector and both angle is 3x-8 and x. Q6. If an Angle Bisector splits an angle , what would be the measurement of each angles thus formed?...

Angle Bisector – FAQs

What is Meaning of Angle Bisector?...

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