已知△ABC是等腰直角三角形,∠BAC=90°,点D是BC的中点,作正方形DEFG
已知△ABC是等腰直角三角形,∠BAC=90°,点D是BC的中点,作正方形DEFG,使点A,C分别在DG和DE上,连接AE,BG(1)试猜想线段BG和AE的数量关系(2)...
已知△ABC是等腰直角三角形,∠BAC=90°,点D是BC的中点,作正方形DEFG,使点A,C分别在DG和DE上,连接AE,BG
(1)试猜想线段BG和AE的数量关系
(2)将正方形DEFG绕点D逆时针方向旋转一定角度后(大于0°,小于360°)判断(1)中的结论是否仍然成立?如果成立,证明;不成立说明理由
(3)若BC=DE=2,在(2)的旋转过程中,当AE为最大值时,求AF的值 展开
(1)试猜想线段BG和AE的数量关系
(2)将正方形DEFG绕点D逆时针方向旋转一定角度后(大于0°,小于360°)判断(1)中的结论是否仍然成立?如果成立,证明;不成立说明理由
(3)若BC=DE=2,在(2)的旋转过程中,当AE为最大值时,求AF的值 展开
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