anonymous
  • anonymous
Given: tangent to Circle O. If m = 140°, then A = 70 110 140 http://assets.openstudy.com/updates/attachments/53739855e4b0530e83f03f38-tootsi123-1400084606214-group179.gif
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
@ganeshie8
anonymous
  • anonymous
@geerky42
anonymous
  • anonymous
@freckles

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geerky42
  • geerky42
m = 140° ? Do you mean \(m\angle C=140^\text o\)
anonymous
  • anonymous
sorry, its m DB with an arch over that= 140
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
would it be 140?
geerky42
  • geerky42
I think that refers to arc DAB (minor arc), right?
anonymous
  • anonymous
right
geerky42
  • geerky42
In that case, then angle half the 140
anonymous
  • anonymous
so, because DB = 140 DAB = 140?
geerky42
  • geerky42
Sorry I am on laptop. What I am trying to say is that given the information, we can see that angle C is half the measure of arc BD |dw:1434465275082:dw|
geerky42
  • geerky42
Then given ABCD is inscribed in circle, we know that sum of opposite angles is always 180, right?
geerky42
  • geerky42
Do you follow me?
anonymous
  • anonymous
right
anonymous
  • anonymous
and yes
geerky42
  • geerky42
Okay, then we have \(m\angle A+m\angle C = 180^\text o\)
geerky42
  • geerky42
we figured out that C is 70.
geerky42
  • geerky42
Right?
anonymous
  • anonymous
right
anonymous
  • anonymous
wait, i got the answer. my teacher came by and just gave me it. thank you for your time!!! i understand it better now
anonymous
  • anonymous
i had rather her explain it to me though
geerky42
  • geerky42
ok, answer is 110, right?
geerky42
  • geerky42
ok great!
anonymous
  • anonymous
thats what she said. thanks again!
geerky42
  • geerky42
ok no problem

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