【进阶级练习题96】6 l2 a' k2 p4 L2 R
_. v* f# b7 ^; K
求:! o! g9 w; G! ^1 u& x* f, h# q
1. BC 之长度为何?0 R; Y* f2 U" Q0 j- N8 v% i
a. 62.8677 b. 62.8767 c. 62.87762 d) C$ G5 a; X3 K8 s2 Q! m2 s6 R
2. a 弧之长度为何? . R& p* [! {# i' G8 S; Q$ D$ | a. 106.7237 b. 106.7327 c. 106.7723 5 z: \9 c2 Q: q3. ∠ADE 之角度值为何?5 D& r" X2 d6 w2 L/ g* }& B w
a. 54.487° b. 54.748° c. 54.874°5 z$ J' _$ `; f Y6 J" n
4. f 之半径值为何?) {2 V2 i& k; W/ g" b
a. 9.9064 b. 9.9406 c. 9.9604" W! d: r$ C9 b* {" P1 M# k
5. g 之半径值为何?" N3 G( L# ^0 i, K
a. 6.9147 b. 6.9417 c. 6.9714
练习题106答案:* {4 M0 Y- i( B0 ~6 F
1. BC 之长度为何? ! M, Q) y& y$ M' n c. 62.8776 3 b9 Y0 @" ?/ |' Q; Y2. a 弧之长度为何?' `/ I8 Q- N$ R# V% C! l9 T- f5 O
b. 106.7327* P( s4 u/ `# _- G. A G
3. ∠ADE 之角度值为何? % ?9 ?; ~ V. y, D0 y/ z% y- S b. 54.748°/ q# d F2 N* C# C0 O) {
4. f 之半径值为何?( F. `1 ?9 |) j( A" X
b. 9.9406* m- n' d$ W( `0 O4 i5 P0 Y
5. g 之半径值为何?- l) b+ `( q4 c+ W {$ O4 `& n
c. 6.9714