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OpenStudy (anonymous):
The flow chart with missing reason proves that consecutive angles of a parallelogram add to 180°.
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OpenStudy (anonymous):
OpenStudy (anonymous):
AB is parallel to CD and AD is parallel to BC the angles 1 and 3 are equal same and 2 and 4 equal same so when u add angle 1+ 2 = 180 and 3+4 = 180
OpenStudy (anonymous):
thats exactly wat i guessed! thanks can u help with one last one?
OpenStudy (anonymous):
ok post in a new question
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