Clarissa made a scale drawing of a rectangle. She used a scale factor of 3 to draw the new rectangle. How does the length of the new rectangle compare to the original? The length of the new rectangle is One-third the length of the original. The length of the new rectangle is StartFraction 1 over 12 EndFraction the length of the original. The length of the new rectangle is 3 times the length of the original. The length of the new rectangle is 12 times the length of the original.