Practice and Problem-Solving Exercises

A Practice

See Problem 1.

Name the following in ⊙ O . circle dot o .

9. the minor arcs
10. the major arcs
11. the semicircles

See Problem 2.

Find the measure of each arc in ⊙ P . circle dot p .

12. T C ⌢ modified t c with frown above
13. T B D ⌢ modified t b d with frown above
14. B T C ⌢ modified b t c with frown above
15. T C B ⌢ modified t c b with frown above
16. C D ⌢ modified c d with frown above
17. C B D ⌢ modified c b d with frown above
18. T C D ⌢ modified t c d with frown above
19. D B ⌢ modified d b with frown above
20. T D C ⌢ modified t d c with frown above
21. T B ⌢ modified t b with frown above
22. B C ⌢ modified b c with frown above
23. B C D ⌢ modified b c d with frown above

See Problem 3.

Find the circumference of each circle. Leave your answer in terms of π . pi .

24. 
25. 
26. 
27. 
28. The camera dolly track in Problem 3 can be expanded so that the diameter of the outer circle is 70 ft. How much farther will a wheel on the outer rail travel during one turn around the track than a wheel on the inner rail?

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