Answer
96$^{\circ}$
Work Step by Step
m$\angle$1=.5(RS+TV)
63=.5(3x+6+x)
126=4x+6
4x=120
x=30
RS=3(30)+6
RS=96$^{\circ}$
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 6 - Section 6.2 - More Angle Measures in the Circle - Exercises - Page 297: 14
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