Cong from St Peter's Roman Catholic Primary School worked hard at this problem. He sent us these pictures to show the flips:

Horizontal flip:



Vertical flip:



First diagonal flip:

I'm not sure this first diagonal flipped one is quite right - have another go.

Second diagonal flip:



And for the triangle, here is the horizontal flip:



The vertical flip:



First diagonal flip:



And finally, the second digaonal flip:

Very well done, Cong!