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【autocad习题22】
求:
1. C3圆弧之弧长为何?
(A) 40.6140 (B) 40.4160 (C) 40.1460
2. C2圆弧之圆心至F点的距离为何?
(A) 81.1162 (B) 81.1261 (C) 81.1621
3. C1圆弧之圆心与 G H联机形成的角度为何?
(A) 111.045° (B)111.405° (C) 111.450°
4. 此图形之外形轮廓线之周长为何?
5. 扣除所有内孔后之净面积为何?
答案http://www.zgjxcad.com/thread-10525-1-1.html
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