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Mathematics 10 Online
OpenStudy (anonymous):

http://i.imgur.com/sygHgKi.png

OpenStudy (_michaeld22):

A = Bh. How to find the area of the large rectangle: 12*9 = ? How to find the area of the small rectangle: 9-6 = 3. 21-12 = 9. 9*3 = ?

OpenStudy (anonymous):

C?

geerky42 (geerky42):

You just divide the figure into two rectangles, like this:|dw:1401574808040:dw|

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