I have a park polygons layer and a set of points which I gave a 1000m buffer. For each of them I had calculated the area size with calculate geometry. So with which tool could I calculate the size of park within each buffer? I had tried intersect; it gives the results of the size of many parts of polygon under the buffer, I need to calculate the area size by myself. If I have 20 buffers could I get the sum of the polygons' size directly? I am using ArcGIS.