Helpp

please can some help me on this next part I am on the left front of the cardigan and have completed the back. The steps tell me to continue knitting until I have reached 10 rows less than on back? How long is 1 rows??
Second question is with the right front it says work to match left front reversing shapings. How is the simplistic way to reverse shadings?

The simplest way to measure the front is to lay it flat on top of the back. Count how many rows between the current knitting and the beginning of the shoulder shaping. When there are 10 fewer rows, start the Shape neck directions.

To reverse the shaping in order to knit the right front, decreases that are worked toward the end of the row (at the neck edge), are worked at the beginning of the row (still the neck edge). Bind offs that are worked at the beginning of a right side (RS) for the left front of the cardi are worked at the beginning of a wrong side (WS) row for the right front of the cardi.