A573 A573
  • 15-10-2018
  • Mathematics
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TheBreeze
TheBreeze TheBreeze
  • 15-10-2018

We know that equilateral triangles have an angle count of 60 each. Knowing this, we can deduce than ang. CBA is 120 because 180 - 60 = 120

120 + 40 is 160, and we know that ang. x = 20, because 180 - 160 = 20

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