【进阶级练习题74】 & T4 r3 _+ B* Q8 D" Z+ X3 q5 r + b6 L" z7 ~4 B1 u7 K8 H' K% ^求:6 ~7 T! ]% u; x
1. AD 之距离为何?; T7 P* R8 T) c S
a. 65.0078 b. 65.0780 c. 65.0870 / [2 j% D# p8 h" ~9 c n# A) f2. ∠ABC 之角度值为何? / _4 ]! V. }; n: \2 | L# t$ b a. 84.129° b. 84.219° c. 84.912°4 J& Y1 V( ~; i0 [" }
3. a 弧之长度为何? ; H7 b$ ]6 P5 |4 l a. 37.4181 b. 37.4818 c. 37.4881 6 B! B# K% E0 Y1 h+ b4. 此图包围的面积为何? h' X1 E; r3 r. ^/ S/ S a.3397.8017 b. 3397.8107 c. 3397.8710
1. AD 之距离为何? b. 65.07808 C9 `8 G7 r1 i
2 s, O' p; o2 t0 S. b5 I; f
2. ∠ABC 之角度值为何? c. 84.912° % }6 Q, z# v" q5 E U$ Z" q. h; R6 a- U
3. a 弧之长度为何? b. 37.4818 ! k& Z& Z% N* x$ E/ A4 D: N5 Q1 c
+ S% c. k; e% _4. 此图包围的面积为何? c. 3397.8710 $ U9 \& I& v( s* r7 v: g ~1 ^ q; z4 A/ _9 a$ j# M9 x: ^; Y