来自崔黎黎的问题
【Thenumberofdiagonalsthatcanbedrawninaregularpolygonwith21:00前要,如果有算式要列算式!+_+是Thenumberofdiagonalsthatcanbedrawninaregularpolygonwithtwentysides(icosagon)is___________.】
Thenumberofdiagonalsthatcanbedrawninaregularpolygonwith
21:00前要,如果有算式要列算式!+_+
是Thenumberofdiagonalsthatcanbedrawninaregularpolygonwithtwentysides(icosagon)is___________.
1回答
2020-10-01 00:25