【进阶级练习题37】! j4 y5 ?+ e" R2 ^5 W5 J$ B
原创:Joseflin先生(台湾) 整理:SHAONX(上海)7 F$ D* I" Y, o0 k0 g
- A4 g/ _6 v- O: J$ h求: + g' m" l& H- R: P3 j1. AB之距离为何?- e4 ]/ T/ `" ]) p: t4 m& a' e1 s
a. 161.2023 b. 161.2203 c. 161.2302 " S; R% U( Y, e% J2. BC之距离为何?6 r+ U3 j8 V `5 P7 f
a. 163.1166 b. 163.1616 c. 163.1661- q6 L* w* ~ Y6 [, k# p
3. ∠ABC之角度值?' ]' R4 |' _$ P6 m z# e
a. 68.011° b. 68.101° c. 68.110° z2 p- n% s0 k& V& R
4. 扣除轴孔部份之面积为何? 8 J0 o4 v5 @1 O6 ?' {9 f# d a. 30152.0943 b. 30152.3409 c. 30152.4903