Respuesta :

Answer:

309.8 mm² (nearest tenth)

Step-by-step explanation:

[tex]\boxed{area \: of \: square = side \times side}[/tex]

Given that the side of the square is 17.6mm,

area of square

= 17.6 ×17.6

= 309.76

= 309.8 mm² (nearest tenth)