anonymous
  • anonymous
Find the value of x.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
:P :P :P
anonymous
  • anonymous
Not the greatest picture in the world.

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anonymous
  • anonymous
not hd, huh
anonymous
  • anonymous
What do you think it is?
anonymous
  • anonymous
but it looks cool, white crystals, me and my uncle went crystal picking and we also found some cool ones... but mine were purple
anonymous
  • anonymous
i have not idea, a crystal lol
anonymous
  • anonymous
they're a pale pink, actually.
anonymous
  • anonymous
rock
anonymous
  • anonymous
ok emily this is another simple one. x is the radius of the circle right.
anonymous
  • anonymous
yep
anonymous
  • anonymous
what do I do?
anonymous
  • anonymous
is the 12 the length of the whole line or just up the the point where the line of 9 meets it
anonymous
  • anonymous
I think it's just where the 9 meets
anonymous
  • anonymous
|dw:1369728122034:dw|
anonymous
  • anonymous
u see the kind of dotted line right. that makes ur triangle and the raduis. so the ans for the dotted line is = x
anonymous
  • anonymous
do u understand
anonymous
  • anonymous
yes
anonymous
  • anonymous
so what ans did u get
anonymous
  • anonymous
15.
anonymous
  • anonymous
yeah u right
anonymous
  • anonymous
ok :) thanks.
anonymous
  • anonymous
What about this one?
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anonymous
  • anonymous
@Kapt_Crazy
anonymous
  • anonymous
The answer to the first problem is not 15.
anonymous
  • anonymous
i think it's 40.
anonymous
  • anonymous
do u need to calculate the angle
anonymous
  • anonymous
prove it.
anonymous
  • anonymous
lol what a challenge
anonymous
  • anonymous
It's an easy one, actually. Since the "9" line is right to the "12" line, you know that it also bisects the "12". Which means that you have a right triangle with a long leg of 9, a short leg of 6, and the hypotenuse of that triangle would be the radius of the circle - which also just happens to be what "x" is.
anonymous
  • anonymous
those angles well be equal because
anonymous
  • anonymous
so it's 12?
anonymous
  • anonymous
|dw:1369728687803:dw|
anonymous
  • anonymous
|dw:1369728693846:dw|
anonymous
  • anonymous
|dw:1369728808616:dw|
anonymous
  • anonymous
is the first one actually 15?
anonymous
  • anonymous
and if the lines are the same length rhss then the angles are the sme
anonymous
  • anonymous
is the entire line 12, or is half the line 12?
anonymous
  • anonymous
- "is the first one actually 15?" Which part of "The answer to the first problem is not 15" is giving you problems? Look at my diagram and all will be clear - IF you THINK about it.
anonymous
  • anonymous
qweqwe is right if the line full length is 12. but if it was the full length the would have centerewd the 12 and not had it ofcentered
anonymous
  • anonymous
off centered
anonymous
  • anonymous
it goes out from the radius perpendicularly, it cant be off-center
anonymous
  • anonymous
|dw:1369729065516:dw|
anonymous
  • anonymous
|dw:1369729144486:dw|
anonymous
  • anonymous
i still believe the ans is 15
anonymous
  • anonymous
Yes, I see what you're saying, and you may have a valid point. And if the picture is drawn to scale, then your argument is further supported. So if the long leg is 12, then the radius is indeed a nice, neat 15.
anonymous
  • anonymous
yeah else it would be 10. sumthing
anonymous
  • anonymous
sqrt117 36+81=117
anonymous
  • anonymous
Yeah, a far less than neat 10.82 or so. :-)
anonymous
  • anonymous
are there any details aabout the length AB and CD are they given equal in question
anonymous
  • anonymous
I'm gonna go with Kapt_Crazy on this one and say that the radius IS 15 for the first problem, based on the offset "12". But it sure would help if the producers of these diagrams would make things unambiguous for the viewers. On the last problem a leg was found based on the assumption that a particular line was tangent, without the problem giving any clues that it was. And as for the second problem, the 2 chords have hash marks which means they're congruent. If the 2 chords are congruent, then so are the angles they subtend, so x=40
phi
  • phi
**. If the 2 chords are congruent, then so are the angles they subtend, so x=40 this follows from the two triangles being congruent by side-side-side: (radius, radius, = chord). therefore by corresponding parts of congruent triangles, the central angles are congruent.
anonymous
  • anonymous
Thanks y'all

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