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July 24, 2014

July 24, 2014

Posted by **Lyn** on Monday, October 3, 2011 at 7:19am.

- math -
**Reiny**, Monday, October 3, 2011 at 9:16amvolume of jar =π(14^2(20) = 280π L

Since 1 L weighs 1 kg

the total weight is 280π + 1.54 = appr. 881.54

(The weight of 1 L of water is 1 Kg within 1/10000 of a kg, but since you are asked to use the rather clumsy value of 22/7 for π, we can go with that.

With the easy access to calculators, where the majority of them have π build in to about 7 digit accuracy, it surprises me that your text asks for 22/7 for π)

- oops - math -
**Reiny**, Monday, October 3, 2011 at 9:18amthe 280π is in cm^3 not litres.

so we have

288π/1000 + 4.54 = 2.45 kg

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