Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter2: Parallel Lines
Section2.4: The Angles Of A Triangle
Problem 23E: Consider any triangle and one exterior angle at each vertex. What is the sum of the measures of the...
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Question
![4) When solving a triangle in which we are given all three
sides, but no angles (like the triangle in problem 3),
a) Explain why it is advantageous to start by solving for the biggest angle.
b) Explain how we can identify which angle will be the biggest, using only the given
side lengths.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe5d5ba1e-3bb2-40a8-b343-59eee918073a%2F291d43ea-5e8d-40ad-9014-edb3c1eb974d%2F6iivqde_processed.png&w=3840&q=75)
Transcribed Image Text:4) When solving a triangle in which we are given all three
sides, but no angles (like the triangle in problem 3),
a) Explain why it is advantageous to start by solving for the biggest angle.
b) Explain how we can identify which angle will be the biggest, using only the given
side lengths.
![3) Use the law of cosines to solve for angle C in the
triangle with a = 12.7, b = 6.12, and c= 15.2.
%3D
12.7
6.12
15.2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe5d5ba1e-3bb2-40a8-b343-59eee918073a%2F291d43ea-5e8d-40ad-9014-edb3c1eb974d%2Ftarctix_processed.png&w=3840&q=75)
Transcribed Image Text:3) Use the law of cosines to solve for angle C in the
triangle with a = 12.7, b = 6.12, and c= 15.2.
%3D
12.7
6.12
15.2
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