【进阶级练习题96】 2 A" q( a- E; o9 d% @ . W- D" M4 J& D0 w( w7 v求:5 s! R% F G2 S- q$ T
1. BC 之长度为何? $ C& O" D0 g7 q" ]/ W( q* m7 |( }, e a. 62.8677 b. 62.8767 c. 62.8776. E2 H k* P2 D; V
2. a 弧之长度为何?+ Q. L5 o; x& C$ Q* n! Y6 z
a. 106.7237 b. 106.7327 c. 106.7723 9 T/ f* {% d0 \3. ∠ADE 之角度值为何?6 ~" l( @% P/ g* w9 a8 T
a. 54.487° b. 54.748° c. 54.874° 7 N u: ]4 q( }/ r0 t4. f 之半径值为何?+ w/ \& W% W5 j" E
a. 9.9064 b. 9.9406 c. 9.9604( v% J3 v x3 y
5. g 之半径值为何? - ^9 x; m/ E: X# a. Z' ] a. 6.9147 b. 6.9417 c. 6.9714
1. BC 之长度为何? * E' o4 g# P B0 L% cc. 62.8776 * a7 V. P( v k9 f; l2 N0 A
2. a 弧之长度为何?$ s- I- |4 \+ Z0 n/ e. e" Q1 `" a$ @
b. 106.7327 s) J8 b2 b% W3 Z3 G3. ∠ADE 之角度值为何? 0 m6 K, \& L9 E$ Q$ i1 K8 D b. 54.748° $ H9 s Q, y+ p0 o4. f 之半径值为何? / D& B1 B) l5 ~# ^2 P1 e$ \( C Y5 q
b. 9.9406 g, ~' l( T' N3 c$ Z j9 k! r* P 5. g 之半径值为何?, t& R g, K' z! z" p4 u
c. 6.9714
练习题106答案:3 l' J; c; o8 T# V. C
1. BC 之长度为何? 7 t' R( s/ ~ o& e8 i, I c. 62.8776 / b6 B0 S. y6 C2. a 弧之长度为何? ( D$ [7 A) v) V b. 106.7327 + B. R- [ [: v3. ∠ADE 之角度值为何?0 Z" h/ ^' k) w) c( h, q* Y b2 m+ }# V
b. 54.748° 5 w( ^! W5 N# s* \9 v( z# f8 l4. f 之半径值为何? / R+ ~( n2 x7 M9 O7 N b. 9.9406 & N& ^: J7 i3 K' p1 |5. g 之半径值为何?2 M4 V' K# V6 r2 J4 s) W5 @
c. 6.9714