These are two rays sharing a common endpoint . they are typically measured in degrees

Angle is the common point of two rays and it is measure typically in degrees.

For example two perpendicular lines have an angle of 90 degree

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above