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楼主 |
发表于 2007-1-4 21:43
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求:
% ~9 E" v) y+ \) A) |1. a 之长度为何?, F X6 J- [2 k+ L6 W/ Y
a. 9.6477 b. 9.6747 c. 9.6774
! `0 N/ L. c9 {- y' E! I2 V2. b 之长度为何?
' T7 C/ _2 @# e ` a. 14.5116 b, 14.5161 c. 14.56111 N. Z! s% _& H2 r4 A
3. A弧之弧长为何?
5 ^+ k" q2 J8 ?# Y8 T3 m a. 27.0034 b. 27.0304 c. 27.0403
3 _- E" T5 N9 a0 z! L# \4 Y4. B弧之弧长为何?
) O* Q* |5 _ x* K% o% J6 m a. 19.8049 b. 19.8409 c. 19.8940
k) _: v! E# @; d5. C弧之半径值为何?& ^2 ~) ?/ r5 X; w0 d/ ^/ o( a
a. 21.8176 b. 21.8671 c. 21.8716
3 c6 i) F/ R$ Y4 C" T6. 剖面线区域之面积为何?& B P( {6 T0 Y0 J/ ? m
a. 145.0234 b. 145.0342 c. 145.0432 |
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