Answer
A) 40 degrees
B) 90 degrees
Work Step by Step
A) We see that the measure of angle 1 is:
$$ =40-0 \\ =40 \ degrees $$
B) We see that the measure of angle 3 is:
$$ = 130-40 \\ = 90 \ degrees$$
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter P - Preliminary Concepts - P.3 - Informal Geometry and Measurement - Exercises P.3 - Page 23: 19
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
