来自孙宝亭的问题
急!在线等答案!用英语回答的数学题.Usearulerandaprotractortodraw3linesAB,BCandCDsuchthatBC⊥ABandBC⊥CD.AreABandCDparalleltoeachother?Explainyouranswerbriefly.
急!在线等答案!用英语回答的数学题.
Usearulerandaprotractortodraw3linesAB,BCandCDsuchthatBC⊥ABandBC⊥CD.AreABandCDparalleltoeachother?Explainyouranswerbriefly.
1回答
2020-12-18 18:08