Answer :
Answer:
16. 142 deg
17. 23 deg
18. 134 deg
19. 38 deg
Step-by-step explanation:
16.
m(arc)QT = 2m 17. m 18. RT is a diameter since it includes the center of the circle, point X. m(arc)RST = 180 m(arc)RS + m(arc)ST = m(arc)RST 46 + m(arc)ST = 180 m(arc)ST = 134 19. RT is a diameter since it includes the center of the circle, point X. m(arc)RQT = 180 m(arc)RQ + m(arc)QT = m(arc)RQT m(arc)RQ + 142 = 180 m(arc)RQ = 38
