有一路灯AB在在灯光下,小明在D处的影长DE=3米,沿BD方向行走到达G点,DG=5米,这时小明的影长GH=5米,小明的身高为1.7米,求路灯杆ab的高度(精确到0.1米)
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![有一路灯AB在在灯光下,小明在D处的影长DE=3米,沿BD方向行走到达G点,DG=5米,这时小明的影长GH=5米,小明的身高为1.7米,求路灯杆ab的高度(精确到0.1米)](/uploads/image/z/3201650-26-0.jpg?t=%E6%9C%89%E4%B8%80%E8%B7%AF%E7%81%AFAB%E5%9C%A8%E5%9C%A8%E7%81%AF%E5%85%89%E4%B8%8B%2C%E5%B0%8F%E6%98%8E%E5%9C%A8D%E5%A4%84%E7%9A%84%E5%BD%B1%E9%95%BFDE%3D3%E7%B1%B3%2C%E6%B2%BFBD%E6%96%B9%E5%90%91%E8%A1%8C%E8%B5%B0%E5%88%B0%E8%BE%BEG%E7%82%B9%2CDG%3D5%E7%B1%B3%2C%E8%BF%99%E6%97%B6%E5%B0%8F%E6%98%8E%E7%9A%84%E5%BD%B1%E9%95%BFGH%3D5%E7%B1%B3%2C%E5%B0%8F%E6%98%8E%E7%9A%84%E8%BA%AB%E9%AB%98%E4%B8%BA1.7%E7%B1%B3%2C%E6%B1%82%E8%B7%AF%E7%81%AF%E6%9D%86ab%E7%9A%84%E9%AB%98%E5%BA%A6%EF%BC%88%E7%B2%BE%E7%A1%AE%E5%88%B00.1%E7%B1%B3%EF%BC%89)
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