Sacred Haven of Debauchery

Actually, I recommend installing Matcad.

I think I saw it. They usually provide PP (presumably a software package) during the courses, which are necessary. But if there isn't enough, I'll also look into Matcad.

Ment, if you're still interested in the triangle problem, find the length of each leg.
Although there's a simpler solution. Without finding the legs and any biquadratic equations. Hint: circumscribe a circle around this right triangle.

Sesam, did you figure out the airplane problem?
It's a cool problem, by the way.

I didn't even try. Unlike math, I always got Cs in physics. I don't like that subject. :(
But I was told that the problem is interesting.