问题
填空题
如果一个多边形的内角和是14400，那么这个多边形的边数是 ．
答案
十．
题目分析：设它的边数为n，根据题意，得
（n﹣2）•180°=1440°，
所以n=10．
所以这是一个十边形．
故答案是十．
搜题请搜索小程序“爱下问搜题”
如果一个多边形的内角和是14400，那么这个多边形的边数是 ．
十．
题目分析：设它的边数为n，根据题意，得
（n﹣2）•180°=1440°，
所以n=10．
所以这是一个十边形．
故答案是十．
A: What can I do for you? B: 1 A: For your daughter ?Look , the shoes are really nice . Do you like them ？ B: Yes . But I’m afraid my daughter doesn’t like the color . ___2______ A: Sure . There are different kinds of shoes over there . What color does she like ? B: __3_____And black is her favorite . A: What size does she need? B: Size 9. Let me see . Um ,this pair of shoes must fit her ._4______ A: They are not expensive ,only 199 yuan . B: That would be fine .___5______ Here is the money .Thanks very much. A: You’re welcome.
|