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一副直角三角板如图放置,点C在FD的延长线上,AB∥CF,∠F=∠ACB=90°...
一副直角三角板如图放置,点C在FD的延长线上,AB∥CF,∠F=∠ACB=90°,∠E=45°,∠A=60°,AC=10,则CD=
.
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