sat一道数学题On a square gameboard that is divided into n row of
sat一道数学题
On a square gameboard that is divided into n row of n squares each,k of these squares lie along the boundary of the gameboard.Which of the following is a possible value for
A.10 B.25 C.34 D.43 E.52
不明白题目在说什么哟……………………