: A, v* c2 ~& L U+ y. K7 V: Y( C求: 6 K% S2 k9 D* ]% ?5 x1. AB之距离为何? ) S7 w# z7 `3 R! B" H; Z a. 161.2023 b. 161.2203 c. 161.2302 & w: X- p7 a$ ~; ? k/ i" @- J2. BC之距离为何?2 ~% r& H$ r6 ^0 S9 u$ X$ g
a. 163.1166 b. 163.1616 c. 163.1661 Y- l7 v" \& q* y/ G- T
3. ∠ABC之角度值? 0 Y, x- z [& a* X' y a. 68.011° b. 68.101° c. 68.110° F2 X+ S' T5 B
4. 扣除轴孔部份之面积为何? ' Z$ h2 g; L4 V9 d+ c8 ^ o3 @" v a. 30152.0943 b. 30152.3409 c. 30152.4903