由題意知,(1)AOC+BOC=180,(2)AOC=2(90-BOC)+30
(1)+2*(2):AOC=150,BOC=30
已知角AOC與BOC互補(bǔ)角AOC比角BOC的余角的2被大30度求角AOC的度數(shù)
已知角AOC與BOC互補(bǔ)角AOC比角BOC的余角的2被大30度求角AOC的度數(shù)
數(shù)學(xué)人氣：864 ℃時(shí)間：2020-04-15 11:00:27
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