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Name % Date Period10.3 - 10.4 Arcs and Angle Measures
In ©O, OA ± RS. Each problem is independent of the others.
1. lfmRA = 40°, thenmZROA =
2. If mRZS = 250°, then mAS =
3. If RS = 12, then RN = N?
4. If RO = 10 and CM= 6, then RN
5. If mZRON = 45° and RO = 12, then RS =»,!<-£
6. If RS = 24 and ON = 11, then OR =
\'Z.
In OP, AS and J^Mare tangents; TR is a diameter; mTB*= 20°, mlft&=**= 125°. Find the following measures.
'= 35'
= 65°,
0P, mAB = 70°, m>l£ = 80°, mED>= 150°, m^BFH = 55°. Find the following measures.
17. m
18. m
19. mZAGE = 70 '
20. mZDGE = //O'21.
-^L
In 0O, EF is tangent at D, GA bisects ZBGD, mAB = 88° and mDG = 62°. Find thefollowing measures.
22. = 00
23. m GB=
24. mZl =
25. mZ2 =
26. mZ3 = TO
Points A, B, C, D, and E lie on 0O. DK is tangent at D.30°. Find the measure of each numbered angle.
= 80°, mCD*= 70°,
1. mZl =2. mZ2 = .3. mZ3 =4. mZ4 =5. mZ5 =6. mZ6 =7. mZ7 = _8. mZ8 = _9. mZ9 = _10. mZlO =11. mZH =12. mZl2 =13. mZl3 =14. mZl4 =
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