91. 有个五边形,4个角equal meature(我没怎么理解),然后1个角不一样,问哪一个角的可能的数值(LZ选的B) 答案有:A:108 B:130 C 135 D,E都>135 I suspect that the question is the possible degree of the angle with the equal measurement. If it is true, then because the sum of pentagon is 540 (n-2)*180, and one angle is different from other four, 1. 108 is impossible, because if it is true, all five angles are the same. 2. any thing no less than 135 would be wrong, because 135*4=540. -- by 会员 zengx014 (2011/7/8 4:39:05)
any thing no less than 135 would be wrong, because 135*4=540. 我觉得这个针对的是那四个一样的角啊 那四个角分别要小于135,但是这题问的难道不是第五个不一样角? |