, of the wall,
, to be 10 times the height given in [Fig. 11], or 6.56 ft.; then, as the areas of triangles such as
, etc., vary as the squares of the heights, but the lengths of sides, as
etc., vary only as the first power of the heights, the weights of the successive trial prisms of rupture will be
or 100 times as great as before, whereas the corresponding cohesive forces, acting along the planes,