【进阶级练习题95】 ( l0 `4 O* W4 l& o( H, T6 T: V+ s8 P& Q& o
求:- D) M# P5 l/ w8 r0 h% q5 K6 d
1. a 弧之长度为何?+ z- y/ N2 D' I% G9 U3 w& O" \
a. 69.4652 b. 69.6452 c. 69.5642' `$ J7 ?+ |# r
2. b 之半径值为何? 3 l$ s5 J; g- w: I2 d0 u5 V a. 8.1584 b. 8.5184 c. 8.8154 ) y- W7 c% T) k8 r; V/ j8 e/ Z1 k3. DE 之距离为何? + }4 Z. w& k2 d L7 I a. 52.3349 b. 52.3439 c. 52.4339! q0 ^4 f5 H, A M8 n( e; b! L p
4. ∠ABC 之角度值为何? 4 P; `1 l) V9 M5 W3 T a. 87.0561° b. 87.5061° c. 87.6510° * Q9 q8 q7 [8 N9 D [ I9 V5. 剖面线区域之面积为何? ! F' A. Q- j, g' Z a. 1321.0485 b. 1321.4085 c. 1321.8405
进阶级练习题95答案: 7 s$ n3 T8 @3 j1. a 弧之长度为何?' [' `$ f2 @5 G6 n5 p
a. 69.4652 ! q, A: E1 u! I3 X8 _8 s8 q7 ~1 q
2. b 之半径值为何?& b) j% A' c- n+ S; U
b. 8.5184 8 |. \* v& ], g3. DE 之距离为何? " W7 f. H2 t: I9 N& f1 p5 r c. 52.4339 $ T" g9 q6 \/ s( G4. ∠ABC 之角度值为何?+ r7 d) r$ u6 Q" g5 g
a. 87.0561° 1 U. @! a0 o$ b2 z- k/ J& F b
5. 剖面线区域之面积为何?3 R+ E0 ]! H. b# I
b. 1321.4085
1. a 弧之长度为何? 7 ]! a" i3 S6 Z8 Q a. 69.4652 b. 69.6452 c. 69.5642 6 P% T4 X5 t3 w# q) m2. b 之半径值为何? 4 B. z$ X. c+ T0 a R6 t a. 8.1584 b. 8.5184 c. 8.8154 " r% M0 O1 z3 ^3. DE 之距离为何? ' ~' j+ x% B" j' x) y9 P7 z a. 52.3349 b. 52.3439 c. 52.4339 $ x& t1 D; s9 y8 S. S+ L }4. ∠ABC 之角度值为何? 1 C B4 U5 `* i" Q( _" n a. 87.0561° b. 87.5061° c. 87.6510° 2 I8 I7 Q( ]9 u5. 剖面线区域之面积为何?4 E5 o" L1 O5 ]/ u% ^& b! ]
a. 1321.0485 b. 1321.4085 c. 1321.8405 ) j E2 z Y$ m8 E4 X4 labcab; K: O6 a7 z$ O1 J* w