Minimum Perimeter of a triangle - Mathematics Stack Exchange I have been playing the app Euclidea, I have been doing quite well but this one has me stumped "Construct a triangle whose perimeter is the minimum possible whose vertices lie on two side of the
The box has minimum surface area - Mathematics Stack Exchange Show that a rectangular prism (box) of given volume has minimum surface area if the box is a cube Could you give me some hints what we are supposed to do?? $$$$ EDIT: Having found that for