Yes, and it doesn't seem to be (there is no way the side is 12 if that given is 3, looks more like ~9).

So yeah... complete luck was had here.

It looks deliberately not to dimension. In the process of getting to the answer I figured out that the width of the yellow rectangle is actually twice the width of the green and pink rectangles. It's a fakeout because it is correct that the green and pink rectangles have the same height.