This has to be ridiculously simple, and I'm just overthinking it. DD7 has an Everyday Math page that asks her to draw a triangle that is 4cm on all sides.

I can do it with a compass, no problem. I showed her that. But that can't be what they are expecting her to do. Is there something obvious that I'm overlooking? She had no idea how to do it, and said they hadn't learned that, which may or may not be true -- she gets really silly about math things and doesn't pay a lot of attention sometimes.