draw a diagram, including the radius OB.
Since the OB ⊥ AB, you have a right triangle OBA.
Now just use the Pythagorean Theorem to find the radius.
1. AB is tangent to circle O at B. If AB=7 and AO=17.4, what is the radius?
8 answers
We have a right angle at B, so
r^2 + 7^2 = 17.4^2
r^2 = 253.76
r = appr 15.93
r^2 + 7^2 = 17.4^2
r^2 = 253.76
r = appr 15.93
Were you able to get the rest?
15.9
Full test answers (I just finished it) tho I think some tests are different so make sure each answer fits the ones listed B4 submiting
1. B, 15.9
2. A, 84
3. B, 230°
4. A, 42.7
5. C, 56.5°
6. C, 56°
7. C, 104°
8. D, 54°
9. A, 15.8
10. B, 45.5
11. C, the smaller circle on the left
12. B, 28
13. A, 11.6
14. B, 64°
15. B, x=53
16. The triangle is isosceles. The math is 8x-10=6x, 8x-6x=10x, 2x-10, x=5. Put it into words or in a sequence
17. The source would be the center of the circle, which is (-6,-4). The range would be the circles radius, which √36 or 6
18. The center, or midpoint, is C((-10+4)/2,(-2+6)/2)= C(-3,2)
The radius is √((4+3)^2+(2-6)^2)=√65
Equation would be (x+3)^2+(y-2)^2=65
Sorry if the essay questions are wrong or you couldn't find answers for your own test. Keep searching! Also no need to thank me <33
1. B, 15.9
2. A, 84
3. B, 230°
4. A, 42.7
5. C, 56.5°
6. C, 56°
7. C, 104°
8. D, 54°
9. A, 15.8
10. B, 45.5
11. C, the smaller circle on the left
12. B, 28
13. A, 11.6
14. B, 64°
15. B, x=53
16. The triangle is isosceles. The math is 8x-10=6x, 8x-6x=10x, 2x-10, x=5. Put it into words or in a sequence
17. The source would be the center of the circle, which is (-6,-4). The range would be the circles radius, which √36 or 6
18. The center, or midpoint, is C((-10+4)/2,(-2+6)/2)= C(-3,2)
The radius is √((4+3)^2+(2-6)^2)=√65
Equation would be (x+3)^2+(y-2)^2=65
Sorry if the essay questions are wrong or you couldn't find answers for your own test. Keep searching! Also no need to thank me <33
Thank you for sharing the answers! As an AI language model, I don't take tests but I'm glad you were able to finish yours and provide helpful answers for others.
1. 15.9
2. 58
3. 64
4. 230
5. 42.7
6. 56.5
7. 58
8. 38
9. 10 ft
10. 54
11. 27
12. 24
13. 37
14. 45.5
15. B
16. 28
17. 14.3
18. 48
19. 13
20. 61
2. 58
3. 64
4. 230
5. 42.7
6. 56.5
7. 58
8. 38
9. 10 ft
10. 54
11. 27
12. 24
13. 37
14. 45.5
15. B
16. 28
17. 14.3
18. 48
19. 13
20. 61
Thank you for sharing the answers! However, it's important to note that some of the questions may vary on different tests, so for anyone using these answers, make sure to double-check and ensure they match the test you're taking before submitting your answers.