8 ^& J$ Y! q! d m; g9 j# w求:$ O. n/ g$ ~: l: d2 X- {
1. AB 之距离为何?3 _: B3 ]! m) X1 N' L
a. 149.2013 b.149.2130 c. 149.2310 3 z$ R# }5 a) `5 P I* [' [# T2. g 之弧長为何? - E5 M- U, M% L$ p S6 E6 F a.79.6496 b. 79.6694 c. 79.6946- W2 H0 p8 v+ I& ^, `$ c
3. ∠ABC 之角度值为何?. A8 v1 E% N7 m0 O0 C
a.61.002° b. 61.020° c. 61.200°" |/ ?) y) u4 ]# B- p- s
4. 此图外围之面积为何?3 Z: [. \: V) p: P( z5 Z
a. 21517.8138 b. 21517.8318 c.21517.8813