D4 F$ b% Q; C4 H求: 4 o, {9 {) {) g( I0 h: J# n1. a 弧之长度为何? ! g4 `) `. `: N7 g, `' S$ a a. 69.4652 b. 69.6452 c. 69.5642 5 K/ P. k* u$ \4 v2. b 之半径值为何? ; h* {; O- H% ] q( s a. 8.1584 b. 8.5184 c. 8.8154+ q8 X, o% P5 F' R$ f5 k+ z4 O
3. DE 之距离为何?8 P& [% w2 r% F! p* T& x- C
a. 52.3349 b. 52.3439 c. 52.4339 ; b8 J4 B u1 N/ T# p4. ∠ABC 之角度值为何? # U- E: q- P( L) A5 L a. 87.0561° b. 87.5061° c. 87.6510°" F2 ]' N6 W- G' f& _
5. 剖面线区域之面积为何? . Y# y4 E! m; D. @' K" A a. 1321.0485 b. 1321.4085 c. 1321.8405
1. a 弧之长度为何?- c7 x8 N% p E
a. 69.4652 b. 69.6452 c. 69.56427 b5 ?/ {! ?" D C) N, C3 I6 h0 g
2. b 之半径值为何? , Q. a, [/ b5 H$ Q { a. 8.1584 b. 8.5184 c. 8.8154 * q( f _4 C' `4 m/ |4 Q3. DE 之距离为何? . C% n0 Q; W$ M# N7 T a. 52.3349 b. 52.3439 c. 52.4339 6 {& s8 S7 v A/ }9 z2 e% b/ w4. ∠ABC 之角度值为何? 0 L$ i8 j* R; x( E a. 87.0561° b. 87.5061° c. 87.6510° 0 e, `- p# Q% H! |5. 剖面线区域之面积为何?. a ^7 r) w: c }+ {% Z; G( e6 z9 k# a
a. 1321.0485 b. 1321.4085 c. 1321.8405 & P5 u7 R5 r9 T: Q jabcab + B/ @- l6 K' b; P! q