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  • 04-04-2017
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Which pair of angles adds up to 180 degrees?

Which pair of angles adds up to 180 degrees class=

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CWard1
CWard1 CWard1
  • 04-04-2017
D. ∠1 and ∠4

∠1 and ∠3 are less than 90° and they both add up to 180°. ∠2 and ∠4 are too obtuse and would be around 360°. ∠2 is about 160° and ∠3 is around 45°. And ∠1 and ∠3 are the same degrees
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