Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Which theorem proves line f is parallel to line g? What value of X is line f parallel to line g?

Transcribed Image Text:The image depicts a geometric figure with three intersecting lines labeled \( f \), \( g \), and \( h \).
- Line \( f \) is a vertical line extending upwards.
- Line \( g \) is a vertical line extending upwards but is angled to the right of line \( f \).
- Line \( h \) is a horizontal line extending to the right.
There are two angles marked at the intersection points:
- On the left, the angle is labeled \( (15x+9)^\circ \).
- On the right, the angle is labeled \( (21x-27)^\circ \).
The angles appear to be consecutive interior angles, which might typically sum to 180 degrees if the lines are parallel. This could be used to solve for \( x \) in a typical educational setting on angles and linear equations.
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