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Mathematics 11 Online
OpenStudy (anonymous):

.

OpenStudy (anonymous):

ANSWER (B)

OpenStudy (anonymous):

see, in this problem, both the angles are supplementary so 3x+5x=180.

OpenStudy (anonymous):

and in the next problem, AB=DC. find x

OpenStudy (anonymous):

do i subtract 3x?

OpenStudy (anonymous):

@vamgadu ??

OpenStudy (anonymous):

no add 5x and 3x=8x => 8x=180

OpenStudy (anonymous):

divide 8?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

22.5

OpenStudy (anonymous):

yes

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