June 2022 1 5 Report
помогите!!!! даю 50!!!
АВСDA1B1C1D1- параллелепипед
АВСD -квадрат
АВ = 2 см
найти: угол между прямыми В1D и DD1, т.е. угол B1DD1; угол между прямыми В1D и DC, т.е. угол В1DC
если можете, подробно, пожалуйста, и с рисунком
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