阅读下列内容，并答题：

我们知道计算n边形的对角线条数公式为$\frac{n\left(n-3\right)}{2}$，如果有一个n边形的对角线一共有20条，则可以得到方程$\frac{n\left(n-3\right)}{2}$=20，去分母得n（n﹣3）=40；∵n为大于等于3的整数，且n比n﹣3的值大3，∴满足积为40且相差3的因数只有8和5，符合方程n（n﹣3）=40的整数n=8，即多边形是八边形．根据以上内容，问：

（1）若有一个多边形的对角线一共有14条，求这个多边形的边数；

（2）A同学说：“我求得一个多边形的对角线一共有30条．”你认为A同学说地正确吗？为什么？

阅读下面短文，根据短文内容，完成下列各题。

    Americans spend their weekends in different ways. But usually they choose the same aim—to rest and to enjoy the time with their family and friends.

    Some Americans hold parties on Saturday nights. They will dance, sing and drink together till midnight. Then they won’t get up until 9, 10 or even 11 o’clock next morning. As soon as they get up, they will go to the nearest corner shop to buy the daily newspaper. They can get news about films, plays, shows and sports in the paper. It will help them decide what to do on Sunday afternoon.

    Before going out on Sunday, they will have a meal, which is called brunch. They will make it at home or go to a restaurant nearby. After brunch some Americans have a picnic with their family or friends. They will take many things with them, such as fresh vegetables, sea food, drinks and table cloths. Usually they drive to a beautiful park, a lake or the seaside.

    Sunday dinner is the most important and the biggest meal of the week and all family members try to show up.