Joining two sentences using "which"?

Question

I have following constructions,

1. The geometric reconstruction of the pentagon models is then performed using graph cut approach.
2. The geometric reconstruction of the pentagon models can be considered as a corner fixing dilemma.

If I make a one sentence using which; then am I placing which at the correct place obeying the correct English grammar (see in my below sentence please)?

The geometric reconstruction of the pentagon models is then performed using a graph cut approach which can be considered as a corner fixing dilemma.

Answer 1

The geometric reconstruction of the pentagon models is then performed using a graph cut approach which can be considered as a corner fixing dilemma.

In that sentence, which is referring to "a graph cut approach."

If you want to use which referring it to "the geometric reconstruction" you should use a sentence similar to the following one:

The geometric reconstruction of the pentagon models, which can be considered as a corner fixing dilemma, is then performed using a graph cut approach.

I would rather use the following sentence, but that is probably a matter of style.

The geometric reconstruction of the pentagon models is then performed using a graph cut approach, and it can be considered as a corner fixing dilemma.