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習題 11B: Q8(a)

習題 11B: Q8(a). ?. C. X. P. 12 cm. 5 cm. B. 10 cm. P. D. Hint: tan C. C. 10 cm. A. X. 12 cm. 10 cm. B. C. X. ?. 習題 11B: Q8(b). 求 PCD 與 ABCD 兩個平面的交角. P. P. M. 10 cm. 10 cm. D. M. C. X. 12 cm. A. 求  PMX. X. 12 cm. 10 cm. B. (Hint: tan M).

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習題 11B: Q8(a)

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  1. 習題11B:Q8(a) ? C X P 12 cm 5 cm B 10 cm P D Hint: tan C C 10 cm A X 12 cm 10 cm B C X ?

  2. 習題11B:Q8(b) 求PCD 與ABCD兩個平面的交角 P P M 10 cm 10 cm D M C X 12 cm A 求PMX X 12 cm 10 cm B (Hint: tan M)

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