To convert the distance from feet to inches, you should use the conversion factor that relates feet to inches. Since there are 12 inches in 1 foot, you can multiply the number of feet by 12 inches per foot.
The appropriate conversion would be:
Converting feet to inches by multiplying 10 feet by 12 inches/1 foot.
This shows that you multiply the distance in feet (10 feet) by the conversion factor (12 inches/1 foot) to get the distance in inches.