题目

阅读短文，判断下列句子与短文内容是否相符Hello! My name is Amy.I am an American girl. I am a student. I am short and thin. I have yellow curly(弯曲的) hair. I havetwo big eyes and a small mouth. I am quiet. I have many friends. Mike is mygood friend. Chen Jie is my good friend, too. She is a Chinese girl. （1） My name is Amy. （2） I have a big mouth. （3） I am a teacher. （4） Mike and Amy are good friends. （5） Chen Jie is an American girl,too.在中，分别是上的点，，  交于点，若，则四边形的面积为________。