the duplication of the cube

There are three  famous  problems  of  antiquity.

1)the duplication  of  the  cube

2)the  trisection  of  the  general  angle

3)the  squaring  of the  circle

Which there wasn't any solution for them.

But now there are some solutions for these problems.

In this post I want you to find the answer of problem 1.

Help:

1)for this you want to make cube root of 2.

So try to draw a×f(2).(note that f(x)=cube root of x)