1. Lesson 7.4

2. Conjectures Geo Sketchpad

3. C-68 The measure of an inscribed angle in a circle is half the measure of the arc it intercepts.

5. C-69 Inscribed angles that intercept the same arc are congruent.

7. C- 70 Angles incribed in a semicircle are right angles.

8. C-71 The opposite angles of a quadrilateral inscribed in a circle are supplementary.

9. A + C = 180 B + D = 180

10. Cyclic quadrilateral - A quadrilateral incribed in a circle.

11. C-72 Parallel lines intercept congruent arcs on a circle.

12. Find the value of x. 127 O x

13. Find the value of x. 132 O 92 O x y

14. Find the value of x. 73 O 98 O x y

15. Find the degree measure of 53 O x A B C

16. Find the degree measure of 53 O x A B C

17. Find the degree measure of 104 O D A B C

18. Find the value of y. 73 O 98 O x y

19. Find the degree measure of 26 O A B C

20. Find the degree measure of 104 O D A B C

21. Find the degree measure of 26 O A B C

22. Find the degree measure of 26 O A B C D

23. Find the value of x 35 O A B C x y

24. Find the value of y 35 O A B C x y

25. Find the degree measure of 19 O A B C D

26. A B C

27. A B C

28. A B C D

29. Find the degree measure of 75 O A B C

30. Find the degree measure of 40 O A B C D

31. Find the degree measure of 40 O A B C D 32 O

32. Find the measure of 73 O 98 O x y A B C D

33. Find the value of 132 O 92 O x y A B C D

34. Find the value of 35 O A B C x y

35. Find the value of x.

36. Find the value of y.

37. Find the value of z.

38. Homework 7.4 p. 346 #1-15