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Mathematics 12 Online
OpenStudy (anonymous):

Find x if segment A B is perpendicular to segment C D in the figure below. A. 7 B. 20 C. 9 D. Not enough information given

OpenStudy (anonymous):

OpenStudy (anonymous):

is "7x+27" the measure of angle CBA? if it is then <CBA = 90 and all you need to do is solve 7x+27=90

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