Respuesta :

Answer:

Umm is it; 0.0004985064 [tex]ft^{2}[/tex]

Step-by-step explanation:

A = [tex]\pi r^{2}[/tex]

because you said the radius is 0.00012 x 105. so

0.00012 x 105 = 0.0126

so 0.0126 would be the raduis.

0.0126 x 0.0126 = 0.00015876

0.00015876 x 3.14 ([tex]\pi[/tex]) = 0.0004985064

I hope this helped.