Since nobody wants to be helpful to give out the Geometry B Semester Exam answers, I will!
1. 180(n-2)
2. AB = CD and BC = AD
3. sometimes
4. Big circle squares, little circle rectangle
5. 135
6. Rectangle
7. 18 and 72
8. 24
9. 10
10. 47 ft
11. OMN OJK SAS
12. AA Postulate
13. 33
14. 2 sqrt 10 miles; 2 sqrt 35 miles
15. X=10
16. yes
17. Obtuse
18. 13 sqrt 2 ft
19. 33/2 + 11/2 sqrt 3
20. 85.24
21. Sin A = 15/17 cos A = 8/17
22. 2.0 mi
23. 812 in2
24. 25.7 ft
25. 44cm2
26. 23.4 ft2
27. 1,216 in2
28. 8,000
29. 20 pi in
30. 45 pi m
31. 6.0025 pi m2
32. 24.0 in2
33. 505 m2; 519 m2
34. 20
35. 308 pi in2
36. 57 ft2
37. 1,671 m2
38. 1:9
39. 1,513.2 in3
40. 286.5 ft2
41. 1,344.8 m2
42. 9:19
43. 52
44. 30
45. 47
46. 35
47. 28
48. (X+3)2+(y-2)2=9
49. (X+4)2+(y+3)2=125
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