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Mathematics 20 Online
OpenStudy (countrygirl1431):

m 1 = 40 50 130

OpenStudy (anonymous):

????

OpenStudy (countrygirl1431):

OpenStudy (anonymous):

40

OpenStudy (anonymous):

90 x 40 / 90 = 40

OpenStudy (countrygirl1431):

I thought it was 40 thank you so much

TheSmartOne (thesmartone):

http://prntscr.com/4yy1b4

TheSmartOne (thesmartone):

It would be 40 because the angles are congruent.

OpenStudy (anonymous):

You have to find the angles first, a line has a angle of 180.

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