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  • 22-05-2017
  • Mathematics
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im supposed to find x for this arc but i don't really understand it

im supposed to find x for this arc but i dont really understand it class=

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Аноним Аноним
  • 22-05-2017
50 = 1/2 (20+ x)
100 = 20 + x
80 = x

answer
x = 80
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