A rectangle has a length of 12 mm and a width of 15 m m a new rectangle was created by multiplying all of the dimensions by a scale factor of 1/3. a. the new perimeter will me ½ times the perimeter of the original rectangle. b. the new perimeter will be ⅓ times the perimeter of the original rectangle. c. the new rectangle will be 2 times the perimeter of the original rectangle. d. the new perimeter will be 3 times the perimeter of the original rectangle