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Mathematics 20 Online
OpenStudy (kikuo):

http://s11.postimg.org/lljznqhk3/Screenshot_823.png http://s11.postimg.org/plvqdpxer/Screenshot_824.png I'm having trouble with this problem. Can someone explain how they got the correct answer?

RhondaSommer (rhondasommer):

so those peticular angles should have been added together to equal 180. did you do that?

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