Respuesta :

Answer:

81 : 25

Step-by-step explanation:

Area of square ABCD = side * side = 5 * 5 = 25 cm²

Area of square PQRS = 9 * 9 = 81 cm²

Ratio of square PQRS to square ABCD = 81 : 25

This cannot be reduced, as there are no common factors