wei604213406 发表于 2010-10-3 10:37:00

求高手解答Joseflin老师的基础题122

1. a 之半径值为何？<br/>&nbsp;&nbsp;&nbsp; (A) 21.7052&nbsp;&nbsp; (B) 21.7205&nbsp;&nbsp; (C) 21.7502<br/>2. b 之半径值为何？<br/>&nbsp;&nbsp;&nbsp; (A) 15.8448&nbsp;&nbsp; (B) 15.8484&nbsp;&nbsp; (C) 15.8844<br/>3. A 弧之弧长为何？<br/>&nbsp;&nbsp;&nbsp; (A) 38.9239&nbsp;&nbsp; (B) 38.9392&nbsp;&nbsp; (C) 38.9932<br/>4. 剖面线区域之面积为何？<br/>&nbsp;&nbsp;&nbsp; (A) 3273.8025&nbsp;&nbsp; (B) 3273.8250&nbsp;&nbsp; (C) 3273.8520<br/>&nbsp;&nbsp;&nbsp; <br/><br/>
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zhoubo323 发表于 2010-11-7 21:07:00

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