3.2
the first rectangles perimeter can be expressed as 4n+1.2 and the second as 6n+0.2
we know that the perimeters are the same so
4n+1.2=6n+0.2
2n+0.2=1.2
2n=1
n=0.5
now to figure out the perimeter we take one of the expressions (im using the first one)
so 4n=2 +1.2=3.2
hope this helps :)
