Why the CAS doesn't work like it should?
Hi, I am trying to use Geogebra to do CAS calculations but the not even first thing I tried to solve with it worked out at all. I input this very simple equation: pi * r^2 = 30 and tried to solve what is r obviously. And I get a result that is completely useless and not what my study material says. It says the solution is 3,090 approximately. Geogebra just gives me r = sqrt30 * (sqrtpi / pi)
W... I'm doing wrong or is Geogebra just useless??