anonymous
  • anonymous
Angles A and C are equal to 90 degrees. Which proportion is true? AOB = COD AOC = DDC ABO = CDO AOC = DOB
Mathematics
schrodinger
  • schrodinger
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imqwerty
  • imqwerty
is there any figure related to the question ? :P some part is missing
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
what do you mean by AO/AB etc.. ie. the / sign its been a while since ive dealt with this

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anonymous
  • anonymous
Their the angles i believe
anonymous
  • anonymous
|dw:1441019269636:dw|
anonymous
  • anonymous
remember that opposite angles are equal*
anonymous
  • anonymous
opposite angles can be seen with the dot
anonymous
  • anonymous
hence the third side of each triangle must be the same if there are two equal angles in each traingle
anonymous
  • anonymous
So is it C because the triangles are similar
anonymous
  • anonymous
|dw:1441019528314:dw|
anonymous
  • anonymous
i remember writing angles like this
anonymous
  • anonymous
im unclear with the notation you are using
anonymous
  • anonymous
Ok hang on
anonymous
  • anonymous
anonymous
  • anonymous
yep here
anonymous
  • anonymous
i have to say it is a bit confusing asking "which proportion is true?" and given no proportions
anonymous
  • anonymous
also labelling angles as A and C, then what are the other bits "AOB = COD" for example? are those angles? if so, they are the same angle "O"
anonymous
  • anonymous
can you post a screenshot of the question?
imqwerty
  • imqwerty
can u prove the 2 triangles similar ?
anonymous
  • anonymous
i don't think thats required... i'm sure from my distant knowledge its similar triangles because of AAA
anonymous
  • anonymous
all angles are equal?
anonymous
  • anonymous
not to repeat myself, but i think the entire question is unclear based on the wording of the possible answers
anonymous
  • anonymous
perhaps our thoughts will be answered when we get a much more clear idea with what we need to answer
anonymous
  • anonymous
that is often the case!
anonymous
  • anonymous
haha!
anonymous
  • anonymous
@ChrystalC are you stuck?
anonymous
  • anonymous
no i got the answer thanks
anonymous
  • anonymous
: )

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