Consider a convex polygon which has 35 diagonals. Then match the following columns:
Column 1Column 2a. Number of triangles joining the vertices of thepolygon p. 210b. Number of points of intersections of diagonal which lies inside the polygon q. 120c. Number of triangle in which exactly one side is common with that of polygon r. 10d. Number of triangles in which exactly two sides are common with that of polygon s. 60