.
.The measure angle B is 
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are vertically opposite angle.
∠a and ∠b are vertical angles with m∠a=x and m∠b=5x−80 .
what is m∠a ?...
Mathematics, 09.01.2020 00:31 fendyli2353
∠a and ∠b are vertical angles with m∠a=x and m∠b=5x−80 .
what is m∠a ?
Answers: 2
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