【基礎級練習題85】
1. a 之直徑值為何?<br/> (A) 39.3052 (B) 39.3205 (C) 39.3502<br/>2. 剖面線區域之面積為何?<br/> (A) 332.2299 (B) 332.2929 (C) 332.2992 <p>【基础级练习题85】答案:<br/>1. a 之直径值 = 39.3503,就是(C)<br/>2. 剖面线区域之面积 = 332.2992,就是(C)</p><p>本题的动画解题演示已经发表,见:</p><p><a href="http://bbs.mjtd.com/forum.php?mod=viewthread&tid=55192&extra=&page=9&page">http://bbs.mjtd.com/forum.php?mod=viewthread&tid=55192&extra=&page=9&page</a>=</p> <p>39.503</p><p>332.2992</p><p>又做出一题,嘿嘿</p>
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