Posted by **Nika** on Thursday, November 11, 2010 at 9:05pm.

How many cubic units are in the volume of a cylinder whose height is four units and whose radius is five units?

What is the surface area of a cube whose volume is 27 cubic inches?

- Math -
**jai**, Thursday, November 11, 2010 at 9:13pm
Volume of a cylinder = area of the base * height, or:

V = pi*(r^2)*h

therefore,

V = pi*(5^2)*4

V = pi*25*4

simplify this. units is in cubic units.

Volume of cube is s^3,, solving for the length of one side:

V = 27 = s^3

cuberoot(27) = s

s = 3 inches

Surface area of cube = 6*area of each face, or:

SA = 6*(s^2)

therefore,

SA = 6*(3^2)

simplify this. units is in square inches.

hope this helps. :)

- Math -
**Anonymous**, Sunday, June 3, 2012 at 10:18pm
How many cubic centimeters can a cigar box hold if its dimensions are 4 centimeters by 14 centimeters by 12 centimeters? Include correct units with your solution.

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