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Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.1: Angles
Problem 2E
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O Houghton Mifflin Harcourt Publishing Company Image Credits:
Cepeda/ZUMA Press/Corbis
(BmZT
T.
3x°
to
R
To find the measure of the vertex angle of the triangle, first find the value of
mZR = mZS=x°
Theorem
mZR+ mZS+
= 180°
Triangle Sum Theorem
x+ x+ 3x = 180
Substitution Property of Equality
= 180
Addition Property of Equality
x =
Property of Equality
So, mZT= 3x° = 3
Module 7
331
Transcribed Image Text:O Houghton Mifflin Harcourt Publishing Company Image Credits: Cepeda/ZUMA Press/Corbis (BmZT T. 3x° to R To find the measure of the vertex angle of the triangle, first find the value of mZR = mZS=x° Theorem mZR+ mZS+ = 180° Triangle Sum Theorem x+ x+ 3x = 180 Substitution Property of Equality = 180 Addition Property of Equality x = Property of Equality So, mZT= 3x° = 3 Module 7 331
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