   Chapter 2.CR, Problem 17CR ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

#### Solutions

Chapter
Section ### Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
1 views

# Given: A B ¯ ∥ C D → m ∠ 2 = x 2 − 3 x + 4 m ∠ 1 = 17 x − x 2 − 5 m ∠ A C E = 111 ° Find: m ∠ 3 , m ∠ 4 , and m ∠ 5 To determine

To find:

The value of x.

Explanation

Given:

The given statement is,

AB¯CDm2=x23x+4m1=17xx25mACE=111°

Figure (1)

Concept:

The measure of an exterior angle of a triangle equals the sum of the measures of the two nonadjacent interior angles.

Calculation:

The given statement is,

AB¯CDm2=x23x+4m1=17xx25mACE=111°

ACE is an exterior angle of ΔABC

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