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3 重

2 重. 1 重. 3 重. C. E. H. CH 與 CE 的交角 = ∠HCE. BH 與 BD 的交角 = ∠DBH. B. C. D. A. E. H. BH 與 BA 的交角 = ∠ABH. B. C. D. A. E. H. B. C. A. F. E. CE 與 ABEF 的交角 = ∠BEC. C. D. G. E. H. CE 與 CDHG 的交角 = ∠ECH. T. D. A. K. H. N. E.

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3 重

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  1. 2 重 1 重 3 重

  2. C E H CH 與 CE 的交角 = ∠HCE

  3. BH 與 BD 的交角 = ∠DBH B C D A E H

  4. BH 與 BA 的交角 = ∠ABH B C D A E H

  5. B C A F E CE 與 ABEF 的交角 = ∠BEC

  6. C D G E H CE 與 CDHG 的交角 = ∠ECH

  7. T D A K H N E EKH 與 ADHE 的交角 = ∠KNT

  8. BKC 與 BCGF 的交角 = ∠KWM B W C K F G M

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