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January 31, 2015

January 31, 2015

Posted by **Mark** on Sunday, February 13, 2011 at 9:39pm.

- geometry -
**Reiny**, Sunday, February 13, 2011 at 9:47pmAreas of similar triangles are proportional to the square of their corresponding sides.

area of smaller/area of larger = 4^2/5^2

area of smaller /30 = 16/25

area of smaller = 30(16/25) = 96/5 or 19.2

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