Thanks for the answer
As far as I can see the only answer can be b if you follow the same process as the first half. If you chose c the triangle colours are wrong. I'm not sure this helps.
The triangle colours are not wrong if you assume that in the 1st half you flip the lower tryangle horizontally and then swap its position with the larger triangle.
Plus if you flip it vertically the large triangle is the wrong way round
I just mean the smaller row of tryangles... as far ignorong the big triangle for the moment.. on the left squares
you can change the row of triangles in the top square to the bottom by
fliping it vertically and swapping the black and white triangles (what apears to be the correct answer)... giving b if aplied to the second column of sqaures
moving the black triangle on the left to the right... wrong.. but as far as I can see valid answere. although not an option
rotaiting 180 degrees wrong.. but as far as I can see valid answere
flipping it horizontally.. (same as above).
or looking at it again.. should I be thinking how to go from the left square to the right.. in which case it is big triangle converts to semi circle
lose the left hand tryingle from the bottom... hmm perapse thats where I went wrong..
Ahh so what I should have been checking is that there is a rule that work across squares vertically and horizontall.. ?