If we double the sides of a hexagon, the sum of all interior angles will? Is the question referring to the side lengths of the hexagon or the no. Of sides?

Answer 1

If you double each side of the hexagon, you will simply get a similar figure. The angles of two similar figures have corresponding equal angles.
The sum of the interior angles is still 720°

Answer 2

So how do we know whether it is referring to the no. Of sides or the side length

Answer 3

I think it implies that it remains a hexagon, but it is indeed not clear.