优质解答
1.
A plane figure having four equal sides.
正方形：四条边相等的平面四边形
.
Mathematics The product obtained when a number or quantity is multiplied by itself.
【数学】 平方：一个数或数量被自己乘了之后所得的积
1.
A plane figure having four equal sides.
正方形：四条边相等的平面四边形
.
Mathematics The product obtained when a number or quantity is multiplied by itself.
【数学】 平方：一个数或数量被自己乘了之后所得的积