McDougal Littell Jurgensen Geometry: Student Edition Geometry

5th Edition

ISBN: 9780395977279

Author: Ray C. Jurgensen, Richard G. Brown, John W. Jurgensen

Publisher: Houghton Mifflin Company College Division

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Angles

In mathematics, angles constitute a very important part. Just like the concept of lines, an angle is a necessary figure that is used for measurement. How do you define its formation? It is formed when two or more lines meet at a point. The point at which…

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Question

Polygon with three sides, three angles, and three vertices. Based on the properties of each side, the types of triangles are scalene (triangle with three three different lengths and three different angles), isosceles (angle with two equal sides and two equal angles), and equilateral (three equal sides and three angles of 60°). The types of angles are acute (less than 90°); obtuse (greater than 90°); and right (90°).

Chapter 3, Problem 9CT

To determine

To find: the measures of numbered angles in the given triangle.

Expert Solution & Answer

Answer to Problem 9CT

The measures of numbered angles ∠1=∠2=600,∠3=1200

Explanation of Solution

Given information:

The given figure is as follows

McDougal Littell Jurgensen Geometry: Student Edition Geometry, Chapter 3, Problem 9CT

The triangle XYZ is regular triangle.

Calculation:

The regular triangle has all sides are congruent and all angles are congruent.

So, for triangle XYZ each angle is

=1803=60

Then the angles of triangle are

∠1=∠2=600∠3=180−60=1200

Hence, the ∠1=∠2=600,∠3=1200

Chapter 3, Problem 8CT

Chapter 3, Problem 10CT

Chapter 3 Solutions

McDougal Littell Jurgensen Geometry: Student Edition Geometry

Ch. 3.1 - Prob. 1CE Ch. 3.1 - Prob. 2CE Ch. 3.1 - Prob. 3CE Ch. 3.1 - Prob. 4CE Ch. 3.1 - Prob. 5CE Ch. 3.1 - Prob. 6CE Ch. 3.1 - Prob. 7CE Ch. 3.1 - Prob. 8CE Ch. 3.1 - Prob. 9CE Ch. 3.1 - Prob. 10CE

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the measures of numbered angles in the given triangle .