【基礎級練習題51】
1. R75弧之弧長為何?<br/> (A) 160.4114 (B) 160.4141 (C) 160.4411<br/>2. 剖面線區域之面積為何?<br/> (A) 16788.7367 (B) 16788.7673 (C) 16788.7736 <p>练习:B,B</p><p> </p> <p>答案:</p><p>1. (B)</p><p>2. (B)</p> <p>【基础级练习题51】答案:<br/>1. R75弧之弧长 = 160.4141,就是(B)<br/>2. 剖面线区域之面积 = 16788.7671,就是(B)</p><p>动画解题演示见:</p><p><a href="http://bbs.mjtd.com/forum.php?mod=viewthread&tid=55192&extra=&page=6#70077">http://bbs.mjtd.com/forum.php?mod=viewthread&tid=55192&extra=&page=6#70077</a></p>
页:
[1]