Hi everyone, I don't know what uni is the best for doing actuarial studies. Also, I've heard ANU is the best ranked uni in Australia but it requires a lower atar than UNSW and macq for example. Why is that? And I read online that ANU isn't good for actuarial studies for a range of reasons, so if...
The diagram shows a rectangular pyramid. X and Y are the midpoints of AD and BC respectively and T is directly above Z. TX = 15cm, TY = 20cm, AB = 25cm and BC = 10cm.
a) Show that ∠XTY = 90°.
b) Using Pythagoras’ theorem, show that TZ = 12 cm.