2 j3 d, Y8 M3 G6 T求:* p( |+ S- ^; @9 u8 z/ {4 i. Z
1. a 之半径值为何? 3 V( `. d) o7 L; U8 n a. 79.5577 b. 79.5757 c. 79.5775 - Y) ]# h1 C+ E2. b 之半径值为何? 9 A2 x$ Z' }' z( e6 B- Y- W a. 47.7465 b. 47.7564 c. 47.7654 5 V" I6 m* H2 C# V) j) g& @3. c 之半径值为何?1 e% R: L& b! G0 R" V: v
a. 31.8013 b. 31.8130 c. 31.8310 * e; U( U! G; r6 P4 ?# Y/ X& @4. d 之半径值为何? Y3 D) M! C- ]! M* u$ u
a. 63.6026 b. 63.6260 c. 63.6620 2 q/ e$ \9 G I* D0 N5. 此图围成之面积为何?3 z" g2 R! C2 n# K
a. 10026.7164 b. 10026.7641 c. 10026.7614
1. c. 79.5775 , N' a/ N& J6 u" [7 w2. a. 47.7465 ! k0 J* J. M+ F) `
3. c. 31.8310" T% ^3 A. D+ K! s% l4 Q! V
4. c. 63.6620* V1 ?' O& k8 }+ w/ ^
5. c. 10026.7614