AB is tangent to circle O at B. The diagram is not drawn to scale. If AB = 6 and AO = 11.7, what is the length of the radius (r)? Round the answer to the nearest tenth.
5.7
8.9
10.0
13.1
This is my version of the test U7 L7 Circles Unit test
1. AB is tangent to circle O at B. If AB=6 and AO=11.7, what is the length of the radius (r)?
A:5.7
B:8.9
C:10.0
D:13.1
Answer: C: 10.0
2. Assume that lines that appear to be tangent are tangent. O is the center of the circle. If m p=14 what is the value of x?
A:x=28
B:x=76
C:x=104
D:x=38
Answer: B: x=76
3. JK, KL, LJ are all tangent to circle O. If JA=10, AL=23, and CK=9, what is the perimeter of JKL?
A:84
B:66
C:42
D:38
Answer= A: 84
4. WZ and XR are diameters of circle C. What is the measure of ZWX. 92 and 50 degrees on the diagram.
A:322
B:230
C:272
D:38
Answer= B: 230
5. The radius of circle O is 28, and OC=9. What is the length of AB? Round the answer to the nearest tenth.
A:58.8
B:53.0
C:29.4
D:26.5
Answer= B: 53.0
6. Circle O is shown below. What is the measure of angle BAC? I see 73 degrees in my diagram.
A:53.5
B:146
C:36.5
D:107
Answer= A: 53.5
7. AC is tangent to circle O at A. If mBY=52, what is m YAC?
A:38
B:64
C:78
D:104
Answer= B: 64
8. In the circle, mBC=66. What is m BCP?
A:33
B:66
C:114
D:132
Answer= A: 33
9. In the circle, NA≅PA, MO⊥NA, RO⊥PA and MO=8 ft. What is PO?
A:64 ft
B:16 ft
C:8 ft
D:4 ft
Answer= D: 4 ft
10. The farthest distance a satellite signal can directly reach is the length of the segment tangent to the curve of Earth's surface. If the angle formed by the tangent satellite signals is 138, what is the measure of the intercepted arc on Earth?
A:84
B:276
C:42
D:69
Answer= C: 42
11. In the circle, m S=33, mRS=120, and RU is a tangent. What is m U?
A:43.5
B:54
C:87
D:27
Answer= D: 27
12. A circle with two chords is shown below. I see 6,14 and 26 on my diagram. What is the value of x? round to the nearest tenth.
A:x=60.7
B:x=156.0
C:x=3.2
D:x=11.1
Answer= D: x=11.1
13. If mAB=50 and mCD=24, what is the value of x?
A:x=26
B:x=62
C:x=37
D:x=74
Answer= C: x=37
14. In circle O, BC=17 and DC=30. What is the length of diameter BA? Round the answer to the nearest tenth.
A:52.9
B:69.9
C:35.9
D:15.9
Answer= C: 35.9
15. A manufacturer is designing a two-wheeled cart that can maneuver through tight spaces. On one test model, the wheel placement (center) and radius are modeled by the equation (x+2)^2+(y-0.5)^2=16. Which graph shows the position and radius of the wheel?
Answer= For this one it should be the one with point (-2,0.5) and the radius should be 4 so just look at the inside of the circle and make sure it has 4 units inside from left to right.
16. AB is tangent to circle O at A. If AO=30 and BC=48, what is AB?
A:84
B:78
C:76
D:72
Answer= D: 72
17. A circle with radius x is shown below. What is the value of x? Round the answer to the nearest tenth. I see 28 and 8.
A:x=29.1
B:x=26.8
C:22.0
D:16.1
Answer= D:16.1
18. Circle O is shown below. If m R=24, what is m O?
A:48
B:96
C:24
D:12
Answer= A: 48
19. Find AB. Round to the nearest tenth id necessary. I see 6 and 14 on my diagram.
A:4.7
B:10
C:32.7
D:11.3
Answer= D:11.3
20. In the circle, AB=42, BC=18, and CD=4. What is the value of x?
A:x=77
B:x=185
C:x=266
D:x=270
Answer= C: x=266
21,22 and 23 are already answered above me.
have y'all not figured out yet that they randomize the unit tests and that you have to mix and mash different answers
Those answers r wrong
Look around for more answers, happy cheating.
the above comment is me, i just forgot to put my name.
GEOM B U7 L7 Circles Unit Test
1. A, 19.6
2. B, 64
3. B, 230°
4. A, 42.7
5. B, 46.5°
6. D, 58°
7. D, 31°
8. D, 54°
9. B, x = 24.0
10. B, 45.5
11. B (small circle on the right of the graph)
12. A, 45
13. A, x = 11.6
14. C, 56°
15. C, x = 266
16. Essay question
If you put the same thing just try to word it differently, you're welcome. <3
My answer:
An isosceles triangle is a triangle that has at least two equal sides and because this is an isosceles triangle, 8x -10 = 6x.
8x - 10 =6x
8x - 6x = 10
2x = 10
x = 5.
17. Essay question
My answer:
(x - p)² + ( y - q )² = r², p and q are the coordinates of the center of the circle.
The position of the source is (- 6, - 4)
An the range is r² = 36 ⇒ r = 6
18. Essay question
My answer:
A. O = ((px + qx) /2, (py + qy) /2) = ((-10 + 4) /2, (-2 + 6) /2) = (-3, 2)
B. Radius = Oq
sqrt((Ox - qx)² + (Oy - qy)²)
sqrt((-3 - 4)² + (2 - 6)²)
sqrt(7² + 4²)
sqrt(65)
C. (x - -3)² + (y - 2)² = (sqrt(65))²
(x + 3)² + (y - 2)² = 65
1. A 10.0
2. A 84
3. D 243
4. C 58.5
5. A 53.5
6. C 73
7. A 33
8. D 54
9. A 15.8
10. B 45.5
11. C
12. D 72
13. A x=11.6
14. B 64
15. B x=53
you can find the essay questions answers online.
Can't see the diagram, but this looks like a very common question I have seen many times, so
OB^2 + 6^2 = 11.7^2
OB^2 = 100.89
OB = appr 10.0
I don't trust any of these there's so many lmaoo does anyone have the actual answers for Geom B Circles Unit Test?
u got answers because I've got problems
These responses are so mixed I don't even know what to put at this point lmao
Can I have the answers to the rest of the test?
yalk tweakun
(I gave the first few words of the question just incase our tests are not the same you can mix and match the answers to get 100% I got 12 out of 15 using the answers and now I'm giving the 100% answers to my test) [also sorry for sloppy formating]
If AB=6 abd AO=11.7 || 10.0
JK, KL, LJ, are all tangent || 64
WZ and XR are diameter of circle c || 230 degrees
What is the length of AB || 42.7
Circle O is shown below || 53.5
AC is tangent to circle O at A || 58 degrees
in the circle, mBC=76 || 38
The farthest distance a satellite signal can || 42
What is the value of X || 24.0
In circle O, BC=19 and DC=35 || 45.5
The question with all the graphs || tiny circle in quadrant II (the top laft quad)
AB is tangent to Circle O at A || 72
A circle with radius x is shown below || 14.3
Circle O is shown below || 56 degrees
In the circle AB=42, BC=18 and CD=4 || 266
I assume that all the essay answers above are correct.
Can someone post the answers
did anyone get the rest of the test?
PLEASE CAN I HAVE THE REST OF THE TEST
Why does no one ever give the answers for FOUNDATIONS GEOMETRY!!!!!
I generally need help:/
yes, did you get the rest of the answers?
Ankio was right on essay questions the answers are
1.19.6
2.64
3.221
4.42.7
5.46.5
6. It’s not 38 it didn’t give me right answer I got it wrong
7.31
8.42
9.it’s not 28.0 it didn’t give me right answer I got it wrong
10.45.5
11.I got it wrong it isn’t the small circle on the right in the middle of the line
12. Isn’t 42 it didn’t give me right answer I got it wrong
13.16.1
14.56 Degrees
15.x=266
I got 11/15 my teacher still needs to grade my essay questions good luck you guys I was just trying to help sorry I got some wrong, I’ll be asking my teacher if I can redo the ones I got wrong
These are not for the new connexus unit test they updated the questions with new answers
yes they randomize the answers. its weird that they have do many questions though.
Was the you silly goose person right for anyone on connexus?
none of these match my answers :( I guess its all different idk
WHY ARE THERE SO MANY? 😭😭😭
Thank you, that helps.
does anyone have the answers??
Those are my answers, I got 11/15 but Ainko follow his essay questions in your own words
I’ll be back once I redo the ones I got wrong
WHY
This was my version that i recieved for the Circles Unit Test
I only missed 2 questions but here's the ones i got correct, good luck everyone!
1. C 10.0
2. A 64
3. B 64
4. D 243
5. C 58.5
6. B 46.5
7. B 64
8. A 33
9. A 10ft
10. A 26
11. D 27
12. A 15.8
13. A 33
14. D 30.6
15. i got this one incorrect don't know the answer sry
16. i got this one incorrect don't know the answer sry
17. D 16.1
18. B 64
19. D 11.3
20. C 266
21. Essay
Answer: x= 5 Answer: Isosceles Triangle
22. Essay
Answer: Range = 6 Answer: Position of the source is (-6,-4)
23. Essay
Answer: A: (-3,2) B: Radius = Oq C: 65
It's important to note that the questions and answers for unit tests on Connexus can change over time, so it's always best to rely on the most recent materials provided by the teacher or school.
I need the answers to unit 7 circles lesson 7 circles unit test
So, I got this. It'll be really hard for anyone to get the SAME exact test, so peruse to cobble your test together.
1). AB=6 and AO=11.7
C. 10.0
2). JK, KL, and LJ are all tangent
B. 64
3). WZ and XR are diameters
B. 230
4). The radius of circle O is 24
A. 42.7
5). Circle O is shown below
B. 46.5
6). AC is tangent to O at A
C. 73
7).In the circle, mBC=62
D. 31
8). The Farthest distance a satellite
D. 54
9). A circle with two chords is shown
D. x=24.0
10). In the circle O, BC=19
B. 45.5
11). A Manufacturer
It was B for me.
12). AB is tangent to circle O at A
D. 72
13). A Circle with radius X is shown below
A. x=11.6
14). Circle O is shown below
B. 64
15). In the circle, AB=19
B. x=53
16). a. Find X the diagram
It's Isosceles. Isosceles triangles are triangles that have at least two equal sides, and because this is an isosceles triangle,
8x -10 = 6x.
8x - 10 =6x
8x - 6x = 10
2x = 10
x = 5.
17). The equation (x+6)^2
(x - p)^2 + ( y - q )^2 = r^2, p and q are the coordinates of the center of the circle.
The position of the source is (- 6, - 4)
And the range is r^2 = 36 -> r = 6
18). A diameter of a circle has endpoints
A. O = ((px + qx) /2, (py + qy) /2) = ((-10 + 4) /2, (-2 + 6) /2) = (-3, 2)
B. Radius = Oq
sqrt((Ox - qx)^2 + (Oy - qy)^2)
sqrt((-3 - 4)^2 + (2 - 6)^2)
sqrt(7^2 + 4^2)
sqrt(65)
C. (x - -3^2 + (y - 2)^2 = (sqrt(65))^2
(x + 3)^2 + (y - 2)^2 = 65
Disclaimer: If these aren't right for you, Then it's not my fault. That was on you. I gave you the right advice, first thing. If I don't have the right answer, someone else does. Find it yourself. I can't give you all the help. I'm not an AI code.
Circles Unit Test
1. AB is tangent...
answer: 19.6
2. JK KL and LJ...
answer: 78
3. WZ and XR...
answer: 221 degrees
4. The radius of circle O is 24...
answer: 42.7
5. circle O is shown below...
answer: 46.5 degrees
6. AC is tangent...
answer: 58 degrees
7. in the circle mBC...
answer: 31 degrees.
8. The farthest distance...
answer: 54 degrees
9. a circle with two chards...
answer: x=11.1
10. in circle O, BC=19...
answer: 45.5
11. a manufacturer is...
answer: its the graph with the smaller circle on the bottom left with the point on the 4 or graph B.
12. AB is tangent...
answer: 72
13. a circle with radius x...
answer: x=11.6
14. circle O is shown...
answer: 48 degrees
15. in the circle, AB=19
answer: x=53
Try looking at Marios* essay questions...they helped me...
Just took the test 100% correct.
thx!!!!
dang man..
So is Aiko correct or...
What do you need help with ^ ?
Only responding to the essay questions... Aiko's answer for #2 is correct, and I don't understand what's going on question #3 so I'll explain it.
Essay Question #1:
Part A:
Finding x is pretty easy. You just need to remember that a full circle is 360 degrees. Put what you're given together and you get:
(8x-10)+(6x)+(10x+10)=360
Simplify and you get x
Part B:
Use the inscribed angles theorem: An inscribed angle is half the size of its arc. So basically Angle _ = 1/2 (Size of arc). Reminder to substitute x (Sorry I can't give full answers. I'm scared of being caught T^T)
Essay Question #2:
Just look at Aiko, they've got the answer
Essay Question #3:
Part A
Use the midpoint formula, and that gets you the center (if you don't remember the midpoint formula, just use google or something)
Part B
Use the distance formula with one of the endpoints and the center (again if you don't remember just use google)
Part C
Just input the variables you've found into the circle equation (google)
the test is now 23 questions long
Circles Unit Test
Unit 7 Lesson 6
1. 19.6
2. 64
3. 243
4. 53.0
5. 53.5
6. 58
7. 33
8. 54
9. 24.0
10. 45.5
11. C. the third picture
12. 72
13. x = 14.3
14. 48
15. x = 53
It’s 60 questions for me
There is the actual test answers hope one day someone doesn't get trolled 😭😭😭😭
1C
2A
3D
4C
5B
6C
7C
8A
9A
10D
11A
12D
13C
14C
15A
btw the essays of the last answers are right.
Test answers:
1. 10.0
2. 78
3. 230
4. 42.7
5. 46.5
6. 56
7. 38
8. 26
9. 24.0
10. 35.9
11. option d
12. 78
13. 14.3
14. 64
15. 61
16. essay
17. essay
18. essay