6 [$ L/ [- c: x) f& \; ?求:/ `6 M s3 u3 w
1. a 之长度为何?" E7 w. V: Y' v
a. 38.1002 b. 38.1020 c. 38.1200 & I! v# N! k5 q( R d' P- x6 B1 ?: I2 ]7 i2. b 之长度为何?9 l w4 @- V! ]6 z3 }+ C ~! _6 O
a. 25.5296 b. 25.5629 c. 25.59623 h7 u$ j. G5 I, ^( D \0 u! U
3. ∠ABC 之角度值为何?$ b; \+ p3 Q& y( ?) n; V+ r
a. 38.006° b. 38.060° c. 38.600° 3 e! O/ y6 n7 `5 F
4. 最外围之面积为何? $ H( |& g9 X0 ^; c a. 469.7197 b. 469.7719 c. 469.7917
1. a 之长度为何? b. 38.1020 & e. t( O* g1 T6 F$ `; i' o; K
2. b 之长度为何? a. 25.5296 % R6 X! S l1 W' i7 m, W+ _" C# {( u8 T5 k; m
3. ∠ABC 之角度值为何? b. 38.060° " q" W5 ~, U4 N4 Y- w 7 o: u8 k: ^) T8 A& A; O4. 最外围之面积为何? c. 469.7917 ' K; G+ c: r8 m8 D3 d7 X / u2 v4 b a/ b. N0 W