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Mathematics 50 Online
OpenStudy (anonymous):

The flow chart with missing reason proves that consecutive angles of a parallelogram add to 180°.

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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