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asked Jul 3, 2016 72.4k views

2 votes

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

Mathematics
middle-school

Wogan asked

by Wogan

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2 Answers

2 votes

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

Papo answered Jul 4, 2016

by Papo

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7 votes

Hmm, I think in the question there is used wrong symbol. It should be
$m\angle 1=55^(\circ)$
Then

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

Xanderu answered Jul 7, 2016

by Xanderu

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