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July 29, 2014

July 29, 2014

Posted by **erika** on Friday, March 6, 2009 at 2:25pm.

- math -
**drwls**, Friday, March 6, 2009 at 2:53pmThe ratio of actual height to shadow height will be the same for both. (Similar triangles are involved)

30/80 = 9/x

Solve for x

30x = 720

etc.

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