Answers to # 7.3 and # 7.4 HW

I am posting the answers to last night's homework since I did not have an opportunity to tell you the answers due to the Chs. 4/6 Test.

Please check your answers to ensure that you understand the basics before moving on to the next 2 sections of HW.

Feel free to post a question as I will check the blog frequently over the weekend.

Have a PG-13 weekend and Happy St. Patty's Day!

# 7.3 Answers

1. 50
2. 55
3. 30
4. 105
5. 76
6. 46
7. not assigned
8. not assigned
9. not assigned
10. not assigned
11. not assigned
12. not assigned
13. not assigned
14. not assigned
15. not assigned
16. not assigned
17. not assigned
18. Angles A & B must be right angles, but this would make the sum of angle measures in the quadrilateral shown greater than 360 degrees.
19. answers will vary. The perpendicular to the tangent passes through the center of the circle. Use the T-square to find two diameters pf the Frisbee. The intersection of these 2 lines is the center
20. y = -8/15 x + 289/15
21. Answers will vary. The center is @ (-2,-1). One possible method: Plot the 3 points. Construct the midpoint and the perpendicular bisector of the segments connecting 2 different pairs of points. Measure the point of intersection of the 2 lines. To check, construct a circle by center plus point, or measure the distance from the center to the 3 given points.

# 7.4 answers

1. 65
2. 30
3. 70
4. d= 140, e =42
5. f= 90, g=100
6. 50
7. 50
8. 148
9. 44
10. 142
11. m=140, n=111
12. p=71, q=41
13. r=120, s=60
14. 180
15. 75
16. the 2 inscribed angles intersect the same arc, therefore, they should be equal.
17. a=50, b=80, c=90, d=65, e=25, f=25, g=56, k=90, l=34, m=56, n=112.