圆不按次序划分10度,20,30,40,50,60,70,80,说各点连起来成一个八边形,问这个八边形的最大可能的内角是多少?我不明白,选项有 A 155 B160 C 165 D 170 E175 我瞎选了一个160 165horsefish
102 PS. Linda walked at a constant speed of r, and passed one point of the city board at 12:00 at noon. Sue also walked at a constant speed and passed the same point at 1:00 that afternoon. How far Linda walked away from that point when she was compassed by Sue?
A. r B. 2/3 r C 3/2 r D 2r E: 3r第二题是不是缺条件啊?作者: himba 时间: 2004-8-3 07:24