jess872 jess872
  • 10-03-2019
  • Mathematics
contestada

Can someone please help me out

Can someone please help me out class=

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koni30
koni30 koni30
  • 10-03-2019
It’s D.
Since it measures 39 degrees and the other side looks about the same amount, and 39 times 2 is 78.
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Kamikazeminem
Kamikazeminem Kamikazeminem
  • 10-03-2019

[tex]BD \: is \: the \: bisector \: of \: \widehat{ABC} \Rightarrow \widehat{ABD}=\widehat{CBD} \\\Rightarrow \widehat{ABC} = \widehat{ABD} + \widehat{CBD} = 2\widehat{ABD} = 2 \times 39 = 78° \\ \Rightarrow D. \: 78° [/tex]

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