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idkman1
idkman1 idkman1
  • 13-01-2017
  • Mathematics
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PLEASE PLEASE HELP!! I'm a bit behind with math, and you'd be doing me a huge huge favor! thank you so much in advance. (:

PLEASE PLEASE HELP!! I m a bit behind with math, and you d be doing me a huge huge favor! thank you so much in advance. (: class=

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jd070901 jd070901
  • 13-01-2017

all triangles equal 180 the exterior line and the missing corner are supplementary meaning that that 1=168

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Anonymous Anonymous
  • 13-01-2017

It is 168. Because the right angle is 90 degrees. The other one is 78. 78+98 = 168. So 180 degrees - 12 degrees is 168.

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