问题
解答题
一个正方形的鱼塘,如果一组对边增加8米,那么面积就增加216平方米,这个鱼塘原来有多少平方米?
答案
原正方形的边长:
216÷8=27(米);
鱼塘原来的面积:
27×27=729(平方米);
答:这个鱼塘原来有729平方米.
一个正方形的鱼塘,如果一组对边增加8米,那么面积就增加216平方米,这个鱼塘原来有多少平方米?
原正方形的边长:
216÷8=27(米);
鱼塘原来的面积:
27×27=729(平方米);
答:这个鱼塘原来有729平方米.
从方框的选项中选择恰当的句子完成对话。
A: Jim, you said you would not stay out late after school, didn't you? B: Yes, mom. I did. . A: But it's 10 o'clock now __1__ B: Sorry, I've been to the hospital. A: What?__2__ B: No, I sent Jack to the hospital. A: Oh, really?__3__ B: He had a terrible headache on the way home. A: Is he better now? B: __4__ A: Good for you, my dear! I'm very glad you can help others. B: __5__ |