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Mathematics 15 Online
OpenStudy (anonymous):

If m ∠ 3 = 104˚, what is m ∠ 8?

OpenStudy (anonymous):

OpenStudy (anonymous):

how do i solve this ?

OpenStudy (mathstudent55):

What is the relationship between <3 and <7?

OpenStudy (anonymous):

there the same number

OpenStudy (anonymous):

180-104

OpenStudy (mathstudent55):

Good. They are corresponding angles, so because of the parallel lines they are congruent. So now you know that m<7 = m<3 = 104

OpenStudy (anonymous):

Because m<3 and m<6 are the same, you would do 180-104

OpenStudy (mathstudent55):

Now, what is the relationship between angles 7 and 8?

OpenStudy (anonymous):

76+104

OpenStudy (anonymous):

^^^ That idk. There next to eachother ? & 180-104= 76

OpenStudy (mathstudent55):

They are supplementary. m<7 + m<8 = 180. So you have 104 + m<8 = 180. Just solve for m<8.

OpenStudy (anonymous):

76 ! (: .. Thankss Everyonee !!!!!!!!!!!!!!

OpenStudy (mathstudent55):

wlcm

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