Answer: The first option.
Step-by-step explanation:
1. The formula for calculate the perimeter is:
P=2l+2w
Where l is the lenght and w is the width.
2. The first perimeter is:
[tex]P_1=2(105m)+2(12.5m)=235m[/tex]
3. If you multiply the dimension by a scale of factor of 2, is the same as write the following expression:
[tex]P_2=2(2l+2w)[/tex]
Where [tex]2l+2w[/tex] is the first perimeter.
4. Then:
[tex]P_2=2(235m)=470m[/tex]
