已知在直角三角形ABC中,角c为直角,AB=2AC,BC=2根号三,则AC等于多少?
已知在直角三角形ABC中,角c为直角,AB=2AC,BC=2根号三,则AC等于多少?
数学人气:635 ℃时间:2020-04-12 05:20:25
优质解答
AC=2怎么得来的?AC^2+BC^2=AB^2AB=2ACBC=2√3解之得AC=2 实际上,B=30度噢,谢谢阿!
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