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(a)
To Draw: an acute
(a)
![Check Mark](/static/check-mark.png)
Explanation of Solution
Given:
An acute angle triangle.
An acute angle triangle is a triangle whose all internal angles less than 90 degrees.
As we know that the angle bisector divides the original angles into two congruent parts.
Thus, an acute angle triangle with angle bisectors as shown below.
Here, O is the point of intersection of angle bisectors.
(b)
To draw: an obtuse triangle and bisect each of the three angles.
(b)
![Check Mark](/static/check-mark.png)
Explanation of Solution
Given:
An obtuse angle triangle.
An obtuse angle triangle is a triangle whose one of the internal angles is greater than 90 degrees.
As we know that the angle bisector divides the original angles into two congruent parts.
Thus, an obtuse angle triangle with angle bisectors as shown below.
Here, E is the point of intersection of angle bisectors.
(c)
To comment: about the point of intersection of angle bisector of acute and obtuse triangle.
(c)
![Check Mark](/static/check-mark.png)
Answer to Problem 15WE
The point of intersection of angle bisector of acute and obtuse triangle lie inside the triangle, i.e. incenter.
Explanation of Solution
Acute triangle with angle bisectors shown below.
Obtuse triangle with angle bisectors shown below.
The point of intersection of angle bisector of acute and obtuse triangle lie inside the triangles.
Point is called incenter.
Chapter 10 Solutions
McDougal Littell Jurgensen Geometry: Student Edition Geometry
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- Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,Elementary Geometry for College StudentsGeometryISBN:9781285195698Author:Daniel C. Alexander, Geralyn M. KoeberleinPublisher:Cengage Learning
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