如图四边形ABCD中,AD=CD,∠DAB=∠ABC=90° 如图四边形ABCD中,AD=CD,∠DAB=∠ABC=90°,过点D作DF⊥AC,垂足为F,DE与AB相交于点E.已知AB=15cm,BC=9cm,P是射线DE上的动点.设DP=xcm(x>0),四边形BCDP的面积为ycm²1
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![如图四边形ABCD中,AD=CD,∠DAB=∠ABC=90° 如图四边形ABCD中,AD=CD,∠DAB=∠ABC=90°,过点D作DF⊥AC,垂足为F,DE与AB相交于点E.已知AB=15cm,BC=9cm,P是射线DE上的动点.设DP=xcm(x>0),四边形BCDP的面积为ycm²1](/uploads/image/z/3806313-33-3.jpg?t=%E5%A6%82%E5%9B%BE%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2CAD%3DCD%2C%E2%88%A0DAB%3D%E2%88%A0ABC%3D90%C2%B0+%E5%A6%82%E5%9B%BE%E5%9B%9B%E8%BE%B9%E5%BD%A2ABCD%E4%B8%AD%2CAD%3DCD%2C%E2%88%A0DAB%3D%E2%88%A0ABC%3D90%C2%B0%2C%E8%BF%87%E7%82%B9D%E4%BD%9CDF%E2%8A%A5AC%2C%E5%9E%82%E8%B6%B3%E4%B8%BAF%2CDE%E4%B8%8EAB%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9E.%E5%B7%B2%E7%9F%A5AB%3D15cm%2CBC%3D9cm%2CP%E6%98%AF%E5%B0%84%E7%BA%BFDE%E4%B8%8A%E7%9A%84%E5%8A%A8%E7%82%B9.%E8%AE%BEDP%3Dxcm%EF%BC%88x%EF%BC%9E0%EF%BC%89%2C%E5%9B%9B%E8%BE%B9%E5%BD%A2BCDP%E7%9A%84%E9%9D%A2%E7%A7%AF%E4%B8%BAycm%26sup2%3B1)
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