Math Problem Statement

Move the vertices of the triangle. What is true about the angle bisectors?

Solution

For Part A, the question is asking about the concurrency of the angle bisectors of a triangle. The angle bisectors of a triangle are lines or segments that divide each angle of the triangle into two equal parts. The point where the three angle bisectors of a triangle meet is called the incenter.

The incenter is always located inside the triangle, and it is the center of the triangle's incircle (a circle that touches all three sides of the triangle). This holds true for acute, right, and obtuse triangles. Hence, the correct answer for Part A is:

  • They are always concurrent.

For Part B, the question is asking if it's possible for the intersection of the angle bisectors (the incenter) to be outside the triangle. Since the incenter is always the center of the inscribed circle and is always located inside the triangle, it cannot be outside the triangle. Therefore, the answer to Part B is:

  • No, it is not possible for the intersection of the angle bisectors to be outside the triangle because the incenter is always inside the triangle.

Let me know if you want more details or have further questions!

Here are 5 follow-up questions:

  1. What is the difference between the incenter and the circumcenter of a triangle?
  2. Can the incenter ever coincide with the centroid of a triangle?
  3. What is the relationship between the incenter and the triangle’s area?
  4. How do you construct the incenter using a compass and straightedge?
  5. What are the properties of the incircle?

Tip: Incenter always stays inside the triangle because it is equidistant from all sides of the triangle.

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Math Problem Analysis

Mathematical Concepts

Angle Bisectors
Triangles
Incenter

Formulas

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Theorems

Concurrency of Angle Bisectors

Suitable Grade Level

Grades 8-10