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January 29, 2015

January 29, 2015

Posted by **kolapo** on Saturday, August 7, 2010 at 7:18am.

- math -
**Reiny**, Saturday, August 7, 2010 at 10:36amI see a volume of

π(2^2)(1.5) + π(3^2)(1.5) + π(4^2)(1.5) - π(1^2)(4.5)

then multiply that result by 2.8 to get the mass in grams

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