【进阶级练习题15】9 n: B" F, L3 A
原创:Joseflin先生(台湾) 整理:SHAONX(上海) " s, k. F" C0 M9 _求: # M$ r1 x4 X: X7 t/ Z1. a 之距离为何?2 K9 c+ O+ h4 O
a. 51.3384 b. 51.3438 c. 51.3843 0 s x# x0 C: z% A8 F5 c2. b 之距离为何?& z# B% {- [; w' V/ j
a. 164.8014 b. 164.8104 c. 164.8401 ) S8 o9 i( B+ f6 w4 V
3. ∠ABC 之角度值为何?$ R) K2 ~3 B' u! k
a. 60.056° b. 60.560° c. 60.650° ; i8 N. _4 W0 V: [4. 剖面线区域之面积为何? X, s/ q# J+ w' {7 k- a
a. 592.8029 b. 592.8292 c. 592.89227 L8 E6 L9 }: T% S c) G5 ?5 m
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