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Mathematics 14 Online
OpenStudy (anonymous):

please help !!!! question in comments

OpenStudy (anonymous):

OpenStudy (bibby):

how many degrees does a straight line have?

OpenStudy (anonymous):

The angles interior to line n must add to 180 degrees.

OpenStudy (bibby):

alternatively you can fill in angles 2 and 3 because they're alternate interior and then use the triangle

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