I've been given a couple of assignments from my teacher, everything I answered correctly except this one task.
------>This how far I've gone
I've figured out how to extract "r" but I can't seem to extract it with 2 uknowns.
Cone is composed of 2 right-angled triangles. So I used one of the triangles to extract the "r" using Pythagoras theorem.
And I got this: s^2=r^2+s^2h
What do I do next?