) r; P! j g! [9 w; W求: - p2 y$ S, n# \) J1. a 弧之长度为何?- `0 P! Z$ I) I, A0 L7 p- Y. n6 y
a. 69.4652 b. 69.6452 c. 69.5642# k- I( R' @9 X& z' N6 b, h
2. b 之半径值为何?5 I0 e6 D' p6 d; e+ b8 t' d
a. 8.1584 b. 8.5184 c. 8.8154 * s, e. e# a$ G4 v9 h5 f3. DE 之距离为何? ( j2 C+ H7 A& B; c0 j( S* | a. 52.3349 b. 52.3439 c. 52.43390 g% ?* m& g3 N C3 Q0 r D
4. ∠ABC 之角度值为何? , _3 o# U9 D4 @ a. 87.0561° b. 87.5061° c. 87.6510° 2 p3 H1 k. p( ]2 g5. 剖面线区域之面积为何?1 F) L1 S3 V1 \; c2 q" _
a. 1321.0485 b. 1321.4085 c. 1321.8405
1. a 弧之长度为何? a. 69.4652 , A. J$ _) j {( t9 P2. b 之半径值为何? b. 8.5184 " O5 Y' I4 ]8 r0 [: |6 |( e3. DE 之距离为何? c. 52.4339 ) R v2 O0 o3 X! {1 P d W3 \4. ∠ABC 之角度值为何? a. 87.0561° 6 e% t5 r5 r6 r4 d: F$ u6 V* u
5. 剖面线区域之面积为何? b. 1321.40859 i6 B# P3 S7 E% N) I7 B
! Y& d# d H u' y( B" l* T
1. a 弧之长度为何? , J+ h1 y4 T5 V+ D8 z a. 69.4652 b. 69.6452 c. 69.56426 P# S6 e$ @1 Z( x$ n
2. b 之半径值为何?# @, N4 O' p ?8 G
a. 8.1584 b. 8.5184 c. 8.8154! N9 w# n, [& a$ g
3. DE 之距离为何? & D# |3 E3 S' I" J. t a. 52.3349 b. 52.3439 c. 52.4339$ U8 U3 c* r7 ^, n9 y
4. ∠ABC 之角度值为何?( W: B' i- y; |8 |. D+ R. _
a. 87.0561° b. 87.5061° c. 87.6510° - a, ?8 Q7 ~% o5. 剖面线区域之面积为何?* V* P# Y2 A5 A( }
a. 1321.0485 b. 1321.4085 c. 1321.8405 ( t9 Y, w) s) C8 h# Mabcab) W+ @7 _% C9 n! F5 L! ^2 j# k