Australian Geometry Test Too Difficult?

[AlexFekken]

I like 1c in particular: so much (obvious) misdirection... Very naughty for an exam question though.

The solutions can be found with just a couple of basic techniques, nothing too fancy (e.g. properties of a triangle inscribed in a circle). If even the teachers were struggling with this then presumably they never mastered or taught those techniques themselves. That would explain things...