英语翻译
问题描述：
英语翻译
R is the set of all points within the triangle ABC which are nearer to B than to A and whose distance from C is less than CB.On the diagram on the answer sheet,draw accurately the boundary of R and indicate carefully the region R by shading it.
答
R是所有点在三角形ABC,这个三角形比A更接近B,它和C是它的距离比CB少.在答题纸上图,绘制准确的R边界,并说明它的精心阴影区域R.