anonymous
  • anonymous
solve triangle BCD. I don't understand how to solve this problem seeing how only one side is labeled. Please help!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
rishavraj
  • rishavraj
whts m
anonymous
  • anonymous
I dont know yet I have to figure that out too :/

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rishavraj
  • rishavraj
see sum of all angles of a triangle = 180 u got values of two angles...so find the value of third angle
anonymous
  • anonymous
oooh okay so D is 69 degrees
rishavraj
  • rishavraj
yup...... :))and lol only two options mention tht value.. :P
anonymous
  • anonymous
A and C, hmm but I need to find sides BC and CD
rishavraj
  • rishavraj
remember sin x = opposite/hypotenuse
anonymous
  • anonymous
Would I plug 69 into sin?
rishavraj
  • rishavraj
as u wish.....like u can also do cos(21) = BC/18
anonymous
  • anonymous
my calculator said there was an error :o I don't know what BC is so I plugged in x over 18
rishavraj
  • rishavraj
18 cos(21) = BC cos(21) = 0.9335.................
rishavraj
  • rishavraj
creepy value -_-
anonymous
  • anonymous
thank you! and i know right?? haha

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