问题
填空题
已知△ABC∽△A'B'C'，若AB=10，A'B'=5，则△ABC与△A'B'C'的周长的比为______．
答案
∵△ABC∽△A'B'C'，
∴△ABC与△A'B'C'的周长的比=AB：A'B'=2：1．
搜题请搜索小程序“爱下问搜题”
已知△ABC∽△A'B'C'，若AB=10，A'B'=5，则△ABC与△A'B'C'的周长的比为______．
∵△ABC∽△A'B'C'，
∴△ABC与△A'B'C'的周长的比=AB：A'B'=2：1．
从所给的8个单词或短语中选择恰当的6个并用其正确的形式填空：
小题2:I ___________________________ a terrible toothache when Mum came back from work. 小题3:---- Why are the children making so much noise? ---- They are ______________________ what programs to watch this evening. 小题4:I think your dress ____________________ the job. I’ll buy one too. 小题5:The film ______________ for five minutes when she got there. 小题6:The police believe that the murder between 9p.m. yesterday and 1a.m. Today. |