anonymous
  • anonymous
refer to picture please
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1370417778526:dw|
anonymous
  • anonymous
solve for x
Jhannybean
  • Jhannybean
yeah, theyre secant lines right?

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anonymous
  • anonymous
i don't know
anonymous
  • anonymous
here also x= 12*16/10
Jhannybean
  • Jhannybean
is it a ratio BECAUSE the lengths of the chords are equal?
anonymous
  • anonymous
@Jhannybean no the lengths of the secants are not equal
Jhannybean
  • Jhannybean
then how were you able to create a ratio just based off the lengths w/o knowing the angles?
anonymous
  • anonymous
use similarity of triangles to get the ratio of proportionately
Jhannybean
  • Jhannybean
Hmm... the triangles... which triangles...lol
anonymous
  • anonymous
u should join the chords first
anonymous
  • anonymous
as the figure doesn't have the vertices labelled its difficult to explain clearly
anonymous
  • anonymous
this u may get in any standard X book of Indian boards where theorems of circle and chords are there
Jhannybean
  • Jhannybean
hm...let me see.
Jhannybean
  • Jhannybean
haha i wish they had that here.
Jhannybean
  • Jhannybean
|dw:1370418641597:dw| like this?
anonymous
  • anonymous
first one and can u name it please
Jhannybean
  • Jhannybean
okay one minute
Jhannybean
  • Jhannybean
|dw:1370418813995:dw|
anonymous
  • anonymous
good and thanks as i am very lazy in typing.. check triangle ACE and triangle DCB
Jhannybean
  • Jhannybean
haha no problem. thank you for taking the time to re explain.
anonymous
  • anonymous
also
anonymous
  • anonymous
sorry @Swilly730 as ur problem has no labels it might happen that i assumed the respective lengths incorrectly hence it may also be given by (x+10)*10 = 12*(16+12) or x= 33.6 -10 =23.6 (as per the rule AC*CB = DC*EC) and thanks to @Jhannybean so correct value of x has to be 23.6
Jhannybean
  • Jhannybean
So you've proved the angles are in proportion to the sides... awesome :) and now i understand it a little more. it'll take practice :\
anonymous
  • anonymous
thank you!
anonymous
  • anonymous
u r welcome
Jhannybean
  • Jhannybean
so it's because AC/DC= CE/CB and AC*CB = DC*CE we can say that 10(x+10)=12(16+12) correct?
Jhannybean
  • Jhannybean
oh nvm you stated that at the end..
Jhannybean
  • Jhannybean
Thank you @matricked :)
anonymous
  • anonymous
welcome dear...
anonymous
  • anonymous
if u don't mind may i know in which standard are u in ...

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