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-----HELP! HELP! HELP!-----

-----HELP! HELP! HELP!------example-1
User Wogan
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2 Answers

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The Answer is D because number 12 angle is acute not obtuse and 12 angle and 1 angle are vertical angles and vertical angles are always the same number of degrees

User Papo
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7.9k points
7 votes
Hmm, I think in the question there is used wrong symbol. It should be
m\angle 1=55^(\circ)
Then

m\angle12=m\angle1=55^(\circ) \Rightarrow D
User Xanderu
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