zuziolacamons
zuziolacamons zuziolacamons
  • 04-06-2016
  • Mathematics
contestada

Vertical angles are
a. never congruent.
b. always congruent.
c. congruent only when they are both obtuse angles.
d. congruent only when they are both acute angles.

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Aliza121
Aliza121 Aliza121
  • 04-06-2016
Are always congruent 
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