Respuesta :

Answer:

30.39 inches

Step-by-step explanation:

6.9 times 3.1=21.39 will give you the area of the long rectangle and to get the small square you ust subtract 6.1-3.1 to get the other side of the square so now you times 3 and 3=9.  

9+21.39=30.39

1kimmie

Step-by-step explanation:

Area of a square = length²

length= 3 inch

Area of the square= 3²

=9inch²