anonymous
  • anonymous
Line AB is tangent to the circle at B. m
Mathematics
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
1 Attachment
mathstudent55
  • mathstudent55
|dw:1377144471353:dw|
anonymous
  • anonymous
\[14=.5(112-X)\] Is that how i would do it?

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anonymous
  • anonymous
Or \[14=.5(x-112)\]
mathstudent55
  • mathstudent55
The first one.
anonymous
  • anonymous
Okay...So 84?
mathstudent55
  • mathstudent55
|dw:1377145019880:dw|
mathstudent55
  • mathstudent55
Yes
anonymous
  • anonymous
is 84 X? i feel like im missing something..
mathstudent55
  • mathstudent55
Yes, x = 84. Now you still need y.
anonymous
  • anonymous
i wouldnt use the same theorem right?
mathstudent55
  • mathstudent55
No. This a different case. You need a different theorem for this one.
mathstudent55
  • mathstudent55
y is the measure of an angle. It is not a length. Perimeter or circumference is a length.
anonymous
  • anonymous
Okay...So then I'm clueless.
mathstudent55
  • mathstudent55
An angle formed by a tangent and a chord that intersect on the circle is half the measure of the intercepted arc.
anonymous
  • anonymous
Right!
mathstudent55
  • mathstudent55
|dw:1377145667642:dw|
anonymous
  • anonymous
But we need to find the arc...right?
mathstudent55
  • mathstudent55
What is the degree measure of arc CD?
mathstudent55
  • mathstudent55
What is the degree measure of an entire circle as an arc?
anonymous
  • anonymous
360
mathstudent55
  • mathstudent55
Right. Which parts of the circle below do you know the measures of? |dw:1377145802550:dw|
anonymous
  • anonymous
SO 360-112-84
anonymous
  • anonymous
164?
mathstudent55
  • mathstudent55
|dw:1377145885955:dw|
anonymous
  • anonymous
So 164, right?
mathstudent55
  • mathstudent55
Correct. Now you need half of that for y.
anonymous
  • anonymous
82!
mathstudent55
  • mathstudent55
Bingo!
anonymous
  • anonymous
Thank you!
mathstudent55
  • mathstudent55
You deserve a medal.
mathstudent55
  • mathstudent55
wlcm
anonymous
  • anonymous
I just need someone to guide me threw the first couple of times then i start getting it lol
mathstudent55
  • mathstudent55
That's the whole idea of studying and having a teacher or a tutor.
anonymous
  • anonymous
Do you know anything about probability distribution?And Im studying online, so i miss out on that just a little bit!
mathstudent55
  • mathstudent55
No, sorry, probability is not my thing.
anonymous
  • anonymous
Alright, thanks for your help!
mathstudent55
  • mathstudent55
wlcm
anonymous
  • anonymous
Thanks to you and @Directrix I understand geometry!
mathstudent55
  • mathstudent55
That's great, thanks. Keep asking questions. That's how you learn. You can tag me any time. If I'm not on, I'll see it the next time I'm on, and if you didn't get any response yet, I'll try to help.

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