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楼主 |
发表于 2007-1-4 21:43
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求:/ y/ J+ x6 H3 q: h- ]8 n; q
1. a 之长度为何?1 h( K3 C/ L* _& ]
a. 9.6477 b. 9.6747 c. 9.6774, F# \; l" V1 O, C
2. b 之长度为何?
3 ^0 {5 I+ W; h# x a. 14.5116 b, 14.5161 c. 14.5611. [5 x. v% C) d+ B% b( J8 G7 P* K
3. A弧之弧长为何?
& g2 @: H4 }- {9 U/ M a. 27.0034 b. 27.0304 c. 27.0403; \7 b: l; q" T& C
4. B弧之弧长为何?$ M! }' P* P+ }2 u) Q3 o) _3 N
a. 19.8049 b. 19.8409 c. 19.8940
- F0 H4 }- p( B4 J4 c5. C弧之半径值为何?4 b( r0 s: }: `5 t/ T! p
a. 21.8176 b. 21.8671 c. 21.8716
' K @! i) }+ v/ @6 D8 Q# E1 g6. 剖面线区域之面积为何?
/ m0 i+ o8 P( f# @ a. 145.0234 b. 145.0342 c. 145.0432 |
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