The perimeters of two similar triangles ∆ABC and ∆PQR are 35cm and 45cm , the ratio of the areas is

The perimeters of two similar triangles ∆ABC and ∆PQR are 35cm and 45cm

respectively, then the ratio of the areas of the two triangles is

The perimeters of two similar triangles ∆ABC and ∆PQR are 35cm and 45cm respectively,then the ratio of the areas of the two triangles is,