本期问题初271已知在分数11192和11192++xx之间只有三个正整数.求整数x的一切可能值的和.初272从正方形的顶点及各边中点这八个点中选取三个点,可组成多少个等腰三角形?高271如图1,在锐角△ABC中,D是图1BC的中点,BEAC于点E,CFAB于点F,H为垂心,DH的延长线分别交AC、BA的延长线于 In this issue, we first know that there are only three positive integers between the fractions 11192 and 11192 ++ xx. Find the sum of all the possible values ​​for the integer x. Beginning with the eight points from the square’s vertices and the mid-points on each side 3, how many isosceles triangles can be composed? High 271 Figure 1, acute angle △ ABC, D is the midpoint of Figure 1BC, BEAC at point E, CFAB at point F, H vertical, DH extension To pay AC, BA extension line at