SOLUTION: what is the reason in the statement {{{ <1 + <aoc =180 <2 + <odb =180 }}}

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Question 361192: what is the reason in the statement +%3C1+%2B+%3Caoc+=180%0D%0A++++++++++++++++++++++++++++++++++++++++%3C2+%2B+%3Codb+=180+
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
You have two pairs of supplementary angles.
Cheers,
Stan H.