I'm a little bit confused about this problem. I've gotten the first part, but I can't get the second!
A piece of wire 13 m long is cut into two pieces. One piece is bent into a square and the other is bent into an equilateral triangle. (a) How much wire should be used for the square in order to maximize the total area? for this I got 13m (b) How much wire should be used for the square in order to minimize the total area? Having trouble with this one. I keep getting:
$$ (53sqrt(3))/(9+4sqrt(3)) $$
but the online program that gave me the assignment is saying this is wrong. Any idea what I'm doing wrong?