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Mathematics
OpenStudy (anonymous):

Triangle ABC is shown below. The flow chart with missing reason proves the measures of the interior angles of ABC total 180°. Which reason can be used to fill in the numbered blank space? Alternate Exterior Angles Theorem Alternate Interior Angles Theorem Corresponding Angles Postulate Same-Side Interior Angles

OpenStudy (anonymous):

OpenStudy (anonymous):

blank spaces ? i dont see any.

OpenStudy (anonymous):

in the flow chart I attached. (pic1) its labeled 1.

OpenStudy (anonymous):

ohh missed that sorry :D i blame my eyes

OpenStudy (anonymous):

alternate interior angles hope this will help you http://www.geom.uiuc.edu/~dwiggins/conj16.html

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