Posted by molly on Saturday, May 21, 2011 at 5:56pm.
a cube has a volume of 27cm3
what is the length of one side of the cube

maths  Reiny, Saturday, May 21, 2011 at 5:58pm
let each side be x
x^3 = 27
mmmh, can you think of a number which when cubed is 27 ?

maths  molly, Saturday, May 21, 2011 at 6:00pm
3 x 3 x 3 = 27 27 is a cube number

maths  Reiny, Saturday, May 21, 2011 at 6:01pm
correct

maths  molly, Saturday, May 21, 2011 at 6:03pm
so the cube number is 3????
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