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Mathematics 19 Online
OpenStudy (anonymous):

http://i.imgur.com/Q3crkQO.png - is it C?

OpenStudy (sweetburger):

63/9 ??? come on this stuff is basic

OpenStudy (anonymous):

so it'a A?

OpenStudy (sweetburger):

63/7 my mistake its 9

OpenStudy (sweetburger):

A=1/2xBxH

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