Traditional Culture Encyclopedia - Photography and portraiture - (2009? Yiyang) As shown in the picture, Xianfeng Village is going to plant trees on the hillside with a slope angle of α, and the horizontal distance between two adjacent trees is required to be 5 met
(2009? Yiyang) As shown in the picture, Xianfeng Village is going to plant trees on the hillside with a slope angle of α, and the horizontal distance between two adjacent trees is required to be 5 met
(2009? Yiyang) As shown in the picture, Xianfeng Village is going to plant trees on the hillside with a slope angle of α, and the horizontal distance between two adjacent trees is required to be 5 meters. Then these two trees are in
Solution: BC = 5m, ∠ CBA = ∠ α.
∴AB=BCcosα=5cosα.
So choose B.
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