katiex
katiex
07-02-2017
Mathematics
contestada
Is this answer correct? :)
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dasdasd
dasdasd
07-02-2017
No, the answer is 21 since you must make the bottom triangle add up to 180, which the missing angle is 120. since it is vertical, the other side is as well 120 degrees. So now add 120+39=159 then subtract 180-159= 21. X=21
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