What is the parameter of a rectangle with width 10 inches and length 13 inches

The parameter of a rectangle can be alculated using the following rule:

parameter = 2 (length + width)

from the givens:

length = 13 inches

width = 10 inches

so, just substitute with the givens in the equation to calculate the parameter:

parameter = 2 (10+13) = 2*23 = 46 inches