正方形是一种特殊的平行四边形,它既具有矩形的一切性质,又具有菱形的一切性质.在我们的生活中,它有着许多妙用.一、判断纱巾形状阿美是一位爱美的女孩,她很羡慕别的姑娘脖子上的那块方纱巾.一天,她在一家商店里看到了一块漂亮的纱巾,非常高兴,可当她打开来看时感觉方巾却不是正方形的.商店老板娘看她犹豫不决的样子,马上过来拉起一组对 Square is a special parallelogram, it has all the properties of a rectangle, but also has all the properties of a diamond in our life, it has many magical effects. First, determine the shape of the scarf Ami is a beauty of the girl, she is Envy the other side of the girl that piece of scarf on the neck .One day, she saw a beautiful scarf in a shop, very happy, but when she opened it to see the square is not square.West shopkeeper to see her Hesitant appearance, immediately pull up a group of pairs