练习题106答案: : q3 ?& g: B1 i9 M1. BC 之长度为何? . a. H7 y4 z; z# O4 V c. 62.87764 K& t G& H9 A* e5 X* z
2. a 弧之长度为何? " O7 t7 M& V8 a0 A& X7 D0 l* r b. 106.7327+ z: _+ P3 T( ]
3. ∠ADE 之角度值为何? & i7 L' t- g7 m8 ^* F b. 54.748° ' f' A1 M ^% @! e4 J2 O- ]4. f 之半径值为何? ; T7 S' W" R$ s- G. V4 T' n% D b. 9.9406 ; s5 O3 x! d e; |, [5. g 之半径值为何?! {- X5 I1 P3 l/ S( {
c. 6.9714