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July 23, 2014

July 23, 2014

Posted by **ANNANYA** on Saturday, February 19, 2011 at 9:18am.

- MATHS,7TH CLASS -
**Reiny**, Saturday, February 19, 2011 at 10:21amarea = (1/2)base x height

= (1/2)(5)(12) = 30

We could also consider BC as the base, then AD becomes the height

so (1/2)(13)(AD) = 30

AD = 2(30)/13

= 60/13

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