在R△ABC中,∠C=90°,BC=3,tanA=5/12,求AC
问题描述:
在R△ABC中,∠C=90°,BC=3,tanA=5/12,求AC
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答
tanA = BC/AC = 3/AC = 5/12 ==> AC = 36/5 = 7.2
在R△ABC中,∠C=90°,BC=3,tanA=5/12,求AC
ji jijiijijij急
tanA = BC/AC = 3/AC = 5/12 ==> AC = 36/5 = 7.2