Respuesta :

Similar triangles have corresponding angles with equal ratios.

HF / BC = 45 / 27 = 1.66667

GH / BD= 22.5/13.5 = 1.6667

FG/CD = 30/18 = 1.6667

Since both triangles have 3 sides with equal ratios, they are similar by SSS (side-side-side)