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一副三角尺按如图的位置摆放（顶点C 与F 重合，边CA与边FE叠合，顶点B、C、D在一条直线上）．将三角尺DEF绕着点F按顺时针方向旋转n°后（0＜n＜180 ），如果EF∥AB，那么n的值是 ...
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一副三角尺按如图的位置摆放顶点C与F重合边CA与边FE叠合顶点BCD在一条直线上将三角尺DEF绕着点
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一副三角尺按如图的位置摆放顶点C与F重合边CA与边FE叠合顶点BCD在一条直线上．将三角尺DEF绕
如图一副三角尺按不同的位置摆放摆放位置中∠α=∠β的图形个数共有
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一副三角尺按如图的位置摆放顶点C与F重合边CA与边FE叠合顶点BCD在一条直线上将三角尺DEF绕着点
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将一副三角尺按如图所示的方式放置使含300角的三角尺的短直角边和含450角的三角尺的一条直角边重合则
将一副三角尺如图拼接含30°角的三角尺△ABC的长直角边与含45°角的三角尺△ACD的斜边恰好重合.
如图一副三角尺按不同的位置摆放摆放位置中∠α=∠β的图形个数是
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2
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将一副三角尺按如图所示的方式放置使含30°角的三角尺的短直角边和含45°角的三角尺的一条直角边重合则
将一副三角尺按如图所示的方式放置使含30°角的三角尺的短直角边和含45°角的三角尺的一条直角边重合则
一副三角尺按如图的位置摆放顶点C与F重合边CA与边FE叠合顶点BCD在一条直线上将三角尺DEF绕着点
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将一副三角尺按如图所示的方式放置使含30°角的三角尺的短直角边和含45°角的三角尺的一条直角边重合
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将一副三角尺按如图所示的方式放置使含30°角的三角尺的短直角边和含45°角的三角尺的一条直角边重合
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