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April 20, 2014

April 20, 2014

Posted by **Felicia** on Sunday, June 13, 2010 at 8:54pm.

Use 3.14 and round to the nearest thousandth.

A 57.876 cm3

B 463.012 cm3

c 289.382 cm3

d 72.346 cm3

- Find the Volume -
**MathMate**, Sunday, June 13, 2010 at 9:15pmradius = 4.8/2 = 2.4 cm

Volume of a sphere

= 4πr³/3

= 4π(2.4³)/3

= 57.906 cm³ using the exact value of π

There is a serious problem with error calculation and significant figures in this question. The radius is given to 2 significant figures, and π used is accurate to 3 significant figures. The answer requested is accurate to 5 significant figures, of which the last two are incorrect.

- Find the Volume -
**Felicia**, Sunday, June 13, 2010 at 9:48pmI put B for this answer but I was not sure when I rounded it, this would be the closest answer.

- Watch out! -
**MathMate**, Sunday, June 13, 2010 at 10:53pmThe

**diameter**of a Sphere is 4.8 cm, which means that the*radius*is...

- Find the Volume -
**Felicia**, Sunday, June 13, 2010 at 11:22pmGot it. Thanks MathMate..

- Find the Volume :) -
**MathMate**, Monday, June 14, 2010 at 7:48amGreat!

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