We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
The Steiner point S of a triangle ABC is such that the total distance SA + SB + SC is as small as possible. The nice fact about S is that the angles ASB, BSC and CSA are all 120°. I mentioned this casually in a lesson with 5Ma recently, and they decided we would try to prove it. It became clear quite quickly that we would have to invent a bit of partial differentiation, but nothing too advanced.
