What's the answer? Please, no one hurt themselves trying to figure it out. :smile1:

im guessing the red portion is bigger than that green triangle portion which will spead the two others apart so it the two triangles fit perfectly together so theres no change in the line on the side

prolly makes no sense, but w/e

Seen the puzzle before and had it figured out by cutting out the paper it was on. Basically, neither of the figures is a triangle. The hypoteneuse of the green and red triangles are on different angles. Look closely and you'll see that the upper "triangle" has a slight concavity while the lower is slightly convex. Pretty cool optical illusion, though.

i dont see it,lol. im lost