sarahrocks6483 sarahrocks6483
  • 20-08-2018
  • Mathematics
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Math question no Guessing and Please show work

Math question no Guessing and Please show work class=

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dragonstoned dragonstoned
  • 26-08-2018

All angkles together are allways 180°

so 19°+55°=74°

180°-74°=106°

C has to be 106°


sina=a/11

sin55=0.819

a=11*0.819

=>a=9

sin19°=b/11

0,33=b/11

0,33*11=3,6

=> b=3,6

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