/ V7 h1 D6 P6 e1 R; F( C. {求:; F. o1 X8 T7 D' u
1. BC之距离为何? 5 C' z& j( C2 x- G" x1 Z/ y a. 47.0246 b. 47.0426 c. 47.06427 G) A& B) d- \- @/ p$ ^/ k% J
2. <ABC角度值为何? 6 ^( i" F" g. p7 Q. G8 }3 ? a. 93.085 ° b. 93.580° c. 93.850°$ q: Q; L) s M* Z: q
3. 绿色剖面线区域之周长为何? , v' e5 q$ `& K$ q a. 90.3283 b. 90.3832 c. 90.8233 0 T3 l0 l+ Z5 O9 a+ o% d4. 扣除绿色剖面区域之面积为何?" H2 q( t Y ]8 \
a. 1338.4145 b. 1338.4415 c. 1338.4514' l9 v+ x0 s9 P l6 H& r& d! k