如图,在等腰梯形ABCD中,AD‖BC,O是CD边的中点,以O为圆心,OC长为半径作圆,交BC边于点E,作E作EH⊥AB,垂足为H,已知○O与AB边相切,切点为F(1)求证:OE‖AB; (2求证:EH=?AB;(3)若BC/BE=1/4,求BH/CE的
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![如图,在等腰梯形ABCD中,AD‖BC,O是CD边的中点,以O为圆心,OC长为半径作圆,交BC边于点E,作E作EH⊥AB,垂足为H,已知○O与AB边相切,切点为F(1)求证:OE‖AB; (2求证:EH=?AB;(3)若BC/BE=1/4,求BH/CE的](/uploads/image/z/13572392-32-2.jpg?t=%E5%A6%82%E5%9B%BE%2C%E5%9C%A8%E7%AD%89%E8%85%B0%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2CAD%E2%80%96BC%2CO%E6%98%AFCD%E8%BE%B9%E7%9A%84%E4%B8%AD%E7%82%B9%2C%E4%BB%A5O%E4%B8%BA%E5%9C%86%E5%BF%83%2COC%E9%95%BF%E4%B8%BA%E5%8D%8A%E5%BE%84%E4%BD%9C%E5%9C%86%2C%E4%BA%A4BC%E8%BE%B9%E4%BA%8E%E7%82%B9E%2C%E4%BD%9CE%E4%BD%9CEH%E2%8A%A5AB%2C%E5%9E%82%E8%B6%B3%E4%B8%BAH%2C%E5%B7%B2%E7%9F%A5%E2%97%8BO%E4%B8%8EAB%E8%BE%B9%E7%9B%B8%E5%88%87%2C%E5%88%87%E7%82%B9%E4%B8%BAF%EF%BC%881%EF%BC%89%E6%B1%82%E8%AF%81%EF%BC%9AOE%E2%80%96AB%EF%BC%9B+%EF%BC%882%E6%B1%82%E8%AF%81%EF%BC%9AEH%3D%3FAB%EF%BC%9B%EF%BC%883%EF%BC%89%E8%8B%A5BC%2FBE%3D1%2F4%2C%E6%B1%82BH%2FCE%E7%9A%84)
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