Answer :
An odd perimeter can only happen if either the length or the width is a fraction with 1/2 in it, or both the length and the width have a 1/4 in it.
The length and the width are found using the regular means, but you will have to worry about fractions involved, so it can get kind of messy
The length and the width are found using the regular means, but you will have to worry about fractions involved, so it can get kind of messy