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发表于 2009-2-27 18:11:54
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来自： 中国台湾
http://img23.imageshack.us/img23/4962/47311173.gif
& k E, Q7 u5 v+ w$ |5 U+ p2 O2 p
1. a 弧之长度为:! ~" F6 h% e3 |0 j7 [% x
b. 83.7758
" }* l' r P9 ?2 p( U9 I6 u# b2. b 弧之长度为: H# k/ z: Y: D! f& X. s$ E
c. 60.4600
/ e- u, A, n8 A# G: z/ } K' j( W3. c 弧之长度为:" `- T# H* ^% t ^8 ~3 Z
b. 65.5325
& m; r8 X" ~6 y$ X" I4. d 弧之长度为:
. g/ c" m# |* }4 h c. 108.6100' B0 }+ ]5 r' F9 [( W1 C
5. e 弧之长度为:
7 e8 J" W R- ?2 M) ]& K a. 76.80184 i) E% R/ M! M, S+ f' C
6. f 弧之长度为:
) O o) C! v, b; f: E0 |; k3 U: W c. 65.4325; v4 G' {6 H* G0 W$ m1 N
7. g 弧之长度为:
) v( d! ~5 W1 o7 [, K+ ^7 k* } b. 126.40518 Z0 p+ u4 N( v9 M3 q- s4 t, [5 p
8. p 弧之长度为:
! r/ |: `8 C/ _- b: |* m( K1 j2 d a. 117.8097 |
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发表于 2009-4-2 15:52:59
发表于 2014-3-15 15:48:25
